QB/T 5621-2021
specification for grading of recovered and recycled acrylonitrile-butadiene-styrene copolymer (ABS){译} 回收和再生丙烯腈-丁二烯-苯乙烯共聚物(ABS)分级技术规范 |
QC/T 1152-2021
specifications for DC/DC converters for electric motorcycles and electric mopeds 电动摩托车和电动轻便摩托车用DC/DC变换器技术条件 |
GB/T 40305-2021
Field device integration—EDD and OPC UA integration technology specification 现场设备集成 EDD与OPC UA集成技术规范 |
GB/T 37199.1-2021
Plastics—Polybutene(PB) moulding and extrusion materials—Part 1:Designation system and basis for specifications 塑料 聚丁烯(PB)模塑和挤出材料 第1部分:命名系统和分类基础 |
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