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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 4197-1984 |
Method for measuring the average grain size of sintered bar and rod of tungsten molybdenum and alloys 钨钼及其合金的烧结坯条、棒材晶粒度测试方法 |
China National Standards sinter |
 English PDF |
| GB/T 3850-1983 |
Impermeable sintered metal materials and hardmetals--Determination of density 致密烧结金属材料与硬质合金密度测定方法 |
China National Standards sinter |
English PDF |
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