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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards; We provide Chinese GB standards and English version GB standards Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services. |
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 21040-2007 |
Fixed capacitors for in electronic equipment - Part 22-1: Blank detail specification: Fixed surface mount multiplayer capacitors of ceramic dielecTric,class2 - Assessment level EZ 电子设备用固定电容器 第22-1部分: 空白详细规范 表面安装用2类多层瓷介固定电容器 评定水平 EZ |
China National Standards Tri |
 English PDF |
| GB/T 21038-2007 |
Fixed capacitors for use in electronic equipment - Part 21-1: Blank detail specification: Fixed surface mount multilayer capacitors of ceramic dielecTric,class 1 - Assessment level EZ 电子设备用固定电容器 第21-1部分：空白详细规范 表面安装用1类多层瓷介固定电容器 评定水平 EZ |
China National Standards Tri |
English PDF |
| GB/T 5343.2-2007 |
Turning tool holders and carTridges for indexable inserts - Part 2: Dimensions and technical specifications of turning tool holders for indexable inserts 可转位车刀及刀夹 第2部分：可转位车刀型式尺寸和技术条件 |
China National Standards Tri |
English PDF |
| GB/T 5343.1-2007 |
Turning tool holders and carTridges for indexable inserts - Part 1: Designation 可转位车刀及刀夹 第1部分：型号表示规则 |
China National Standards Tri |
English PDF |
| GB/T 20972.1-2007 |
Petroleum and natural gas indusTries - Material for use in H2S - containing environments in oil and gas production - part 1: General principles for selection of cracking-resistant materials 石油天然气工业 油气开采中用于含硫化氢环境的材料 第1部分：选择抗裂纹材料的一般原则 |
China National Standards Tri |
English PDF |
| GB/T 20971-2007 |
Petroleum and natural gas indusTries - Equipment for well cementing - Performance testing of cementing float equipment 石油天然气工业 固井设备 注水泥浮动装置性能测试 |
China National Standards Tri |
English PDF |
| GB/T 20957.2-2007 |
Test conditions for machining centres - Part 2: GeomeTric tests for machines with vertical spindle or universal heads with vertical primary rotary axis (vertical Z-axis) 精密加工中心检验条件 第2部分：立式或带垂直主回转轴的万能主轴头机床 几何精度检验(垂直Z轴) |
China National Standards Tri |
English PDF |
| GB/T 20957.1-2007 |
Test conditions for precision machining centres - Part 1: GeomeTric tests for machines with horizontal spindle and with accessory heads (horizontal Z axis) 精密加工中心检验条件 第1部分：卧式和带附加主轴头机床几何精度检验(水平Z轴) |
China National Standards Tri |
English PDF |
| GB/T 14661-2007 |
CarTridges, type A,for indexable inserts 可转位A型刀夹 |
China National Standards Tri |
English PDF |
| GB/T 20995-2007 |
Power electronics for elecTrical transmission and distribution systems - Testing of thyristor valves for static VAR compensators 输配电系统的电力电子技术 静止无功补偿装置用晶闸管阀的试验 |
China National Standards Tri |
English PDF |
| GB/T 20990.1-2007 |
Thyristor valves for high voltage direct current (HVDC) power transmission - Part 1: ElecTrical testing 高压直流输电晶闸管阀 第1部分：电气试验 |
China National Standards Tri |
English PDF |
| GB/T 21037-2007 |
Determination of Trimethoprim in feeds - High performance liquid chromatography 饲料中三甲氧苄胺嘧啶的测定 高效液相色谱法 |
China National Standards Tri |
English PDF |
| GB/T 21030-2007 |
Test method for the mean and disTribution of fibre diameter of wool and other animal fibre - an Optical Fibre Diameter Analyser (OFDA) 羊毛及其他动物纤维平均直径与分布试验方法 纤维直径光学分析仪法 |
China National Standards Tri |
English PDF |
| GB 4793.1-2007 |
Safety requirements for elecTrical equipment for measurement，control，and laboratory use - Part 1: General requirements 测量、控制和实验室用电气设备的安全要求 第1部分：通用要求 |
China National Standards Tri |
English PDF |
| GB/T 1693-2007 |
Rubber,vulcanized - Determination of dielecTric constant and dielectric loss tangent 硫化橡胶 介电常数和介质损耗角正切值的测定方法 |
China National Standards Tri |
English PDF |
| GB 3836.17-2007 |
ElecTrical apparatus for explosive gas atmosphere - Part 13: Construction and use of rooms or buildings protected by pressurization 爆炸性气体环境用电气设备 第17部分：正压房间或建筑物的结构和使用 |
China National Standards Tri |
English PDF |
| GB 20936.1-2007 |
ElecTrical apparatus for the detection and measurement of flammable gases - Part 1: General requirement and test methods 可燃性气体探测用电气设备 第1部分：通用要求和试验方法 |
China National Standards Tri |
English PDF |
| GB/T 7597-2007 |
Method of sampling for transformer and turbine oils in elecTric power industry 电力用油(变压器油、汽轮机油)取样方法 |
China National Standards Tri |
English PDF |
| GB/T 17564.5-2007 |
Standard data element types with associated classification scheme for elecTric components - Part 5: Extensions to the EXPRESS dictionary schema 电气元器件的标准数据元素类型和相关分类模式 第5部分: EXPRESS 字典模式扩展 |
China National Standards Tri |
English PDF |
| GB/T 2877-2007 |
Hydraulic fluid power - Two-port slip-in carTridge valves - Cavities 液压二通盖板式插装阀 安装连接尺寸 |
China National Standards Tri |
English PDF |
| GB/T 20975.2-2007 |
Chemical analysis methods of aluminium and aluminium alloys - Part 2：Determination of arsenic content molybdenum blue spectrophotomeTric method 铝及铝合金化学分析方法 第2部分：砷含量的测定 钼蓝分光光度法 |
China National Standards Tri |
English PDF |
| GB/T 20975.1-2007 |
Chemical analysis methods of aluminium and aluminium alloys - Part 1：Determination of mercury content - Cold atomic absorption spectromeTric method 铝及铝合金化学分析方法 第1部分：汞含量的测定 冷原子吸收光谱法 |
China National Standards Tri |
English PDF |
| GB/T 20931.9-2007 |
Methods for chemical analysis of lithium - Determination of nitrogen content - Mercuric potassium iodide spectrophotomeTric method 锂化学分析方法 氮量的测定 碘化汞钾分光光度法 |
China National Standards Tri |
English PDF |
| GB/T 20931.8-2007 |
Methods for chemical analysis of lithium - Determination of chlorine content - Thiocyanate spectrophotomeTric method 锂化学分析方法 氯量的测定 硫氰酸盐分光光度法 |
China National Standards Tri |
English PDF |
| GB/T 20931.7-2007 |
Methods for chemical analysis of lithium - Determination of nickel content - α-Furil dioxime spectrophotomeTric method 锂化学分析方法 镍量的测定 α-联呋喃甲酰二肟萃取光度法 |
China National Standards Tri |
English PDF |
| GB/T 20931.6-2007 |
Methods for chemical analysis of lithium - Determination of aluminum content - Chromazurol S-cetylpyridine broide spectrophotomeTric method 锂化学分析方法 铝量的测定 铬天青S-溴化十六烷基吡啶分光光度法 |
China National Standards Tri |
English PDF |
| GB/T 20931.5-2007 |
Methods for chemical analysis of lithium - Determination of silicon content - Molybdenum blue spectrophotomeTric method 锂化学分析方法 硅量的测定 硅钼蓝分光光度法 |
China National Standards Tri |
English PDF |
| GB/T 20931.4-2007 |
Methods for chemical analysis of lithium - Determination of iron content - Orthopenanthroline spectrophotomeTric method 锂化学分析方法 铁量的测定 邻二氮杂菲分光光度法 |
China National Standards Tri |
English PDF |
| GB/T 20931.3-2007 |
Methods for chemical analysis of lithium - Determination of calcium content - Flame atomic absorption spectromeTric method 锂化学分析方法 钙量的测定 火焰原子吸收光谱法 |
China National Standards Tri |
English PDF |
| GB/T 20931.2-2007 |
Methods for chemical analysis of lithium - Determination of sodium content - Flame atomic absorption spectromeTric method 锂化学分析方法 钠量的测定 火焰原子吸收光谱法 |
China National Standards Tri |
English PDF |
| GB/T 20931.1-2007 |
Methods for chemical analysis of lithium - Determination of potassium content - Flame atomic absorption spectromeTric method 锂化学分析方法 钾量的测定 火焰原子吸收光谱法 |
China National Standards Tri |
English PDF |
| GB/T 20931.11-2007 |
Methods for chemical analysis of lithium - Determination of magnesium content - Flame atomic absorption spectromeTric method 锂化学分析方法 镁量的测定 火焰原子吸收光谱法 |
China National Standards Tri |
English PDF |
| GB/T 20931.10-2007 |
Methods for chemical analysis of lithium - Determination of copper content - Flame atomic absorption spectromeTric method 锂化学分析方法 铜量的测定 火焰原子吸收光谱法 |
China National Standards Tri |
English PDF |
| GB/T 20930-2007 |
Lithium sTrip 锂带 |
China National Standards Tri |
English PDF |
| GB/T 2072-2007 |
Nickel and nickel alloy sTrips 镍及镍合金带材 |
China National Standards Tri |
English PDF |
| GB/T 12237-2007 |
Steel ball valves for petroleum, petrochemical and allied indusTries 石油、石化及相关工业用的钢制球阀 |
China National Standards Tri |
English PDF |
| GB/T 12235-2007 |
Steel globe valves and lift check valve for petroleum, petrochemical and allied indusTries 石油、石化及相关工业用钢制截止阀和升降式止回阀 |
China National Standards Tri |
English PDF |
| GB/T 12234-2007 |
Bolted bonnet steel gate valves for petroleum and natural gas indusTries 石油、天然气工业用螺柱连接阀盖的钢制闸阀 |
China National Standards Tri |
English PDF |
| GB/T 15170-2007 |
Packing containers - Pails of sheet for indusTrial 包装容器 工业用薄钢板圆罐 |
China National Standards Tri |
English PDF |
| GB 50397-2007 |
Code for acceptance of elecTrical construction installation in metallurgy 冶金电气设备工程安装验收规范 |
China National Standards Tri |
English PDF |
| GB/T 20858-2007 |
Glass containers - Determination of capacity by gravimeTric method - Test method 玻璃容器 用重量法测定容量的试验方法 |
China National Standards Tri |
English PDF |
| GB/T 4461-2007 |
Thermostat bimetal sTrip 热双金属带材 |
China National Standards Tri |
English PDF |
| GB/T 4238-2007 |
Heat-resisting steel plate, sheet and sTrip 耐热钢钢板和钢带 |
China National Standards Tri |
English PDF |
| GB/T 4237-2007 |
Hot rolled stainless steel plate, sheet and sTrip 不锈钢热轧钢板和钢带 |
China National Standards Tri |
English PDF |
| GB/T 3280-2007 |
Cold rolled stainless steel plate, sheet and sTrip 不锈钢冷轧钢板和钢带 |
China National Standards Tri |
English PDF |
| GB/T 223.40-2007 |
Iron, steel and alloy - Determination of niobium content - The sulphochlorophenol S spectrophotomeTric method 钢铁及合金 铌含量的测定 氯磺酚S分光光度法 |
China National Standards Tri |
English PDF |
| GB/T 20887.1-2007 |
Continuously hot rolled high strength steel sheet and sTrip for automobile - Part 1: High yield strength steel for cold forming 汽车用高强度热连轧钢板及钢带 第1部分：冷成形用高屈服强度钢 |
China National Standards Tri |
English PDF |
| GB/T 20564.3-2007 |
Continuously cold rolled high strength steel sheet and sTrip for automobile - Part 3: High strength interstitial free steel 汽车用高强度冷连轧钢板及钢带 第3部分：高强度无间隙原子钢 |
China National Standards Tri |
English PDF |
| GB/T 20564.1-2007 |
Continuously cold rolled high strength steel sheet and sTrip for automobile - Part 1：Bake hardening steel 汽车用高强度冷连轧钢板及钢带 第1部分：烘烤硬化钢 |
China National Standards Tri |
English PDF |
| GB/T 20846-2007 |
Shipbuilding - Ventilation and air-treatment of galleys and panTries with cooking appliances 造船 厨房和具有烹调设备的配餐室的通风及空气处理 |
China National Standards Tri |
English PDF |
| GB/T 20845-2007 |
Small craft - Inboard diesel engines - Engine-mounted fuel and elecTrical components 小艇 舷内柴油机 机装燃油和电气部件 |
China National Standards Tri |
English PDF |
| GB/T 20844-2007 |
Small craft - Inboard petrol engines - Engine-mounted fuel and elecTrical components 小艇 舷内汽油机 机装燃油和电气部件 |
China National Standards Tri |
English PDF |
| GB/T 18910.21-2007 |
Liquid crystal and solid-state display devices - part 2-1: Passive maTrix monochrome LCD modules - Blank detail specification 液晶和固态显示器件 第2-1部分：无源矩阵单色液晶显示模块 空白详细规范 |
China National Standards Tri |
English PDF |
| GB/T 20884-2007 |
MaltodexTrin 麦芽糊精 |
China National Standards Tri |
English PDF |
| GB 10737-2007 |
Working chemical - General rules for assay - Weight titration（potentiomeTric method） 工作基准试剂 含量测定通则 称量电位滴定法 |
China National Standards Tri |
English PDF |
| GB 3883.5-2007 |
Safety of hand-held motor-operated elecTric tools - Part 2: Particular requirements for circular saws 手持式电动工具的安全 第二部分：圆锯的专用要求 |
China National Standards Tri |
English PDF |
| GB 3883.3-2007 |
Safety of hand-held motor-operated elecTric tools - Part 2: Particular requirements for grinders, polishers and disk-type sanders 手持式电动工具的安全 第二部分：砂轮机、抛光机和盘式砂光机的专用要求 |
China National Standards Tri |
English PDF |
| GB 3883.15-2007 |
Safety of hand-held motor-operated elecTric tools - Part 2: Particular requirements for hedge trimmers 手持式电动工具的安全 第二部分：修枝剪的专用要求 |
China National Standards Tri |
English PDF |
| GB 3883.14-2007 |
Safety of hand-held motor-operated elecTric tools - Part 2: Particular requirements for chain saws 手持式电动工具的安全 第二部分：链锯的专用要求 |
China National Standards Tri |
English PDF |
| GB 3883.10-2007 |
Safety of hand-held motor-operated elecTric tools - Part 2: Particular requirements for planers 手持式电动工具的安全 第二部分：电刨的专用要求 |
China National Standards Tri |
English PDF |
| GB 12476.3-2007 |
ElecTrical apparatus for use in the presence of combustible dust - part 3: Classfication of areas where combustible dusts are or may be present 可燃性粉尘环境用电气设备 第3部分：存在或可能存在可燃性粉尘的场所分类 |
China National Standards Tri |
English PDF |
| GB/T 20875.1-2007 |
Method of test the hydrolytic stability of elecTrical insulating materials - Part 1: Plastic films 电气绝缘材料水解稳定性的试验方法 第1部分：塑料薄膜 |
China National Standards Tri |
English PDF |
| GB/T 18015.6-2007 |
Multicore and symmeTrical pair/quad cables for digital communications - Part 6: Symmetrical pair/quad cables with transmission characteristics up to 600MHz - Work area wiring - Sectional specification 数字通信用对绞或星绞多芯对称电缆 第6部分：具有600MHz及以下传输特性的对绞或星绞对称电缆 工作区布线电缆 分规范 |
China National Standards Tri |
English PDF |
| GB/T 18015.5-2007 |
Multicore and symmeTrical pair/quad cables for digital communications - Part 5: Symmetrical pair/quad cables with transmission characteristics up to 600MHz - Horizontal floor wiring - Sectional specification 数字通信用对绞或星绞多芯对称电缆 第5部分：具有600MHz及以下传输特性的对绞或星绞对称电缆 水平层布线电缆 分规范 |
China National Standards Tri |
English PDF |
| GB/T 18015.42-2007 |
Multicore and symmeTrical pair/quad cables for digital communications - Part 42:Riser cables - Capability approval-Sectional specification 数字通信用对绞或星绞多芯对称电缆 第42部分：垂直布线电缆 能力认可 分规范 |
China National Standards Tri |
English PDF |
| GB/T 18015.4-2007 |
Multicore and symmeTrical pair/quad cables for digital communications- Part 4：Riser cables - Sectional specification 数字通信用对绞或星绞多芯对称电缆 第4部分：垂直布线电缆 分规范 |
China National Standards Tri |
English PDF |
| GB/T 18015.41-2007 |
Multicore and symmeTrical pair/quad cables for digital communications - Part 41: Riser cables - Blank detail specification 数字通信用对绞或星绞多芯对称电缆 第41部分：垂直布线电缆 空白详细规范 |
China National Standards Tri |
English PDF |
| GB/T 18015.32-2007 |
Multicore and symmeTrical pair/quad cables for digital communications - Part 32: Work area wiring - Capability Approval - Sectional specification 数字通信用对绞或星绞多芯对称电缆 第32部分：工作区布线电缆 能力认可 分规范 |
China National Standards Tri |
English PDF |
| GB/T 18015.3-2007 |
Multicore and symmeTrical pair/quad cables for digital communications - Part 3：Work area wiring - Sectional specification 数字通信用对绞或星绞多芯对称电缆 第3部分：工作区布线电缆 分规范 |
China National Standards Tri |
English PDF |
| GB/T 18015.31-2007 |
Multicore and symmeTrical pair/quad cables for digital communications - Part 31: Work area wiring - Blank detail specification 数字通信用对绞或星绞多芯对称电缆 第31部分：工作区布线电缆 空白详细规范 |
China National Standards Tri |
English PDF |
| GB/T 18015.22-2007 |
Multicore and symmeTrical pair/quad cables for digital communications - Part 22: Horizontal floor wiring - Capability Approval - Sectional specification 数字通信用对绞或星绞多芯对称电缆 第22部分：水平层布线电缆 能力认可 分规范 |
China National Standards Tri |
English PDF |
| GB/T 18015.2-2007 |
Multicore and symmeTrical pair/quad cables for digital communications - Part 2：Horizontal floor wiring - Section specification 数字通信用对绞或星绞多芯对称电缆 第2部分：水平层布线电缆 分规范 |
China National Standards Tri |
English PDF |
| GB/T 18015.21-2007 |
Multicore and symmeTrical pair/quad cables for digital communications - Part 21: Horizontal floor wiring - Blank detail specification 数字通信用对绞或星绞多芯对称电缆 第21部分：水平层布线电缆 空白详细规范 |
China National Standards Tri |
English PDF |
| GB/T 18015.1-2007 |
Multicore and symmeTrical pair/quad cables for digital communications Part 1: Generic specification 数字通信用对绞或星绞多芯对称电缆 第1部分：总规范 |
China National Standards Tri |
English PDF |
| GB/T 18015.11-2007 |
Multicore and symmeTrical pair/quad cables for digital communications - Part 11: Capability Approval - Generic specification 数字通信用对绞或星绞多芯对称电缆 第11部分：能力认可 总规范 |
China National Standards Tri |
English PDF |
| GB/T 14598.19-2007 |
ElecTrical relays - Part 22-7: Electrical disturbance tests for measuring relays and protection equipment - Power frequency immunity tests 电气继电器 第22-7部分：量度继电器和保护装置的电气骚扰试验-工频抗扰度试验 |
China National Standards Tri |
English PDF |
| GB/Z 20869-2007 |
IndusTrial robot - Intermediate Code for Robot(ICR) 工业机器人 用于机器人的中间代码 |
China National Standards Tri |
English PDF |
| GB/T 20868-2007 |
IndusTrial robot - Detailed implementation specification for performance and related test 工业机器人 性能试验实施规范 |
China National Standards Tri |
English PDF |
| GB/T 20867-2007 |
IndusTrial robot - Safety implementation specification 工业机器人 安全实施规范 |
China National Standards Tri |
English PDF |
| GB/T 20819.2-2007 |
Controllers with analogue signals for use indusTrial-process control system - Part 2: Guidance for inspection and routine testing 工业过程控制系统用模拟信号控制器 第2部分：检查和例行试验导则 |
China National Standards Tri |
English PDF |
| GB/T 20819.1-2007 |
Controllers with analogue signals for use indusTrial-process control system - Part 1: Methods of evaluating the performance 工业过程控制系统用模拟信号控制器 第1部分：性能评定方法 |
China National Standards Tri |
English PDF |
| GB/T 20818.1-2007 |
IndusTrial-process measurement and control-data structures and elements in process equipment catalogues - Part 1: Measuring equipment with analogue and digital output 工业过程测量和控制 过程设备目录中的数据结构和元素 第1部分：带模拟和数字输出的测量设备 |
China National Standards Tri |
English PDF |
| GB/T 19769.4-2007 |
Function blocks for indusTrial-process measurement and control system - Part 4: Rules for compliance profiles 工业过程测量和控制系统用功能块 第4部分：一致性行规指南 |
China National Standards Tri |
English PDF |
| GB/T 7409.3-2007 |
Excitation system for synchronous elecTrical machines - Technical requirements of excitation system for large and medium synchronous generators 同步电机励磁系统 大、中型同步发电机励磁系统技术要求 |
China National Standards Tri |
English PDF |
| GB/T 2522-2007 |
Methods of test for determination of surface insulation resistance and lamination factor of elecTric sheet and strip 电工钢片（带）表面绝缘电阻、涂层附着性测试方法 |
China National Standards Tri |
English PDF |
| GB/T 20831-2007 |
Methods of assessment of temperature capability of interlaminar insulation coatings of elecTrical sheet and strip 电工钢片（带）层间绝缘涂层温度特性测试方法 |
China National Standards Tri |
English PDF |
| GB/T 4583-2007 |
Measurement of noise emitted by elecTric tools - Engineering method 电动工具噪声测量方法 工程法 |
China National Standards Tri |
English PDF |
| GB/T 2900.28-2007 |
Electrotechnical terminology - ElecTric tool 电工术语 电动工具 |
China National Standards Tri |
English PDF |
| GB/T 13380-2007 |
A．C．elecTric fans and regulators 交流电风扇和调速器 |
China National Standards Tri |
English PDF |
| GB/T 20744-2006 |
Method for the determination of metronidazole, ronidazole and dimeTridazole residues in honey - LC-MS-MS method 蜂蜜中甲硝唑、洛硝哒唑、二甲硝咪唑残留量的测定 液相色谱-串联质谱法 |
China National Standards Tri |
English PDF |
| GB/T 20801.6-2006 |
Pressure piping code - IndusTrial piping - Part 6: Safeguarding 压力管道规范 工业管道 第6部分：安全防护 |
China National Standards Tri |
English PDF |
| GB/T 20801.5-2006 |
Pressure piping code - IndusTrial piping - Part 5: Inspection and testing 压力管道规范 工业管道 第5部分：检验与试验 |
China National Standards Tri |
English PDF |
| GB/T 20801.4-2006 |
Pressure piping code - IndusTrial piping - Part 4: Fabrication and assembly 压力管道规范 工业管道 第4部分：制作与安装 |
China National Standards Tri |
English PDF |
| GB/T 20801.3-2006 |
Pressure piping code - IndusTrial piping - Part 3: Design and calculation 压力管道规范 工业管道 第3部分：设计和计算 |
China National Standards Tri |
English PDF |
| GB/T 20801.2-2006 |
pressure piping code - IndusTrial piping - Part 2: Materials 压力管道规范 工业管道 第2部分：材料 |
China National Standards Tri |
English PDF |
| GB/T 20801.1-2006 |
Pressure piping code IndusTrial piping―Part 1：General 压力管道规范 工业管道 第1部分:总则 |
China National Standards Tri |
English PDF |
| GB/T 6284-2006 |
Chemical products for indusTrial use - General method for determination of water content - The loss of mass on drying method 化工产品中水分测定的通用方法 干燥减量法 |
China National Standards Tri |
English PDF |
| GB/T 3684-2006 |
Conveyor belts - ElecTrical conductivity - Specification and test method 输送带 导电性 规范和试验方法 |
China National Standards Tri |
English PDF |
| GB/T 3049-2006 |
Chemical products for indusTrial use - General method for determination of iron content - 1,10-Phenanthroline spectrophotometric method 工业用化工产品 铁含量测定的通用方法 1，10-菲啰啉分光光度法 |
China National Standards Tri |
English PDF |
| GB/T 20780-2006 |
IndusTrial circulating cooling water - Determination of carbonate alkalinity 工业循环冷却水 碳酸盐碱度的测定 |
China National Standards Tri |
English PDF |
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