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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 40800-2021 |
Specification and Qualification of welding procedures for production welding of steel castings 铸钢件焊接工艺评定规范 |
China National Standards Qualification of wel |
 English PDF |
| GB/T 34630.3-2017 |
Friction stir welding—Aluminium and its alloys—Part 3：Qualification of welding operators 搅拌摩擦焊 铝及铝合金 第3部分：焊接操作工的技能评定 |
China National Standards Qualification of wel |
English PDF |
| GB/T 34630.4-2017 |
Friction stir welding—Aluminium and its alloys—Part 4：Specification and Qualification of welding procedures 搅拌摩擦焊 铝及铝合金 第4部分：焊接工艺规程及评定 |
China National Standards Qualification of wel |
English PDF |
| GB/T 19866-2005 |
Specification and Qualification of welding procedures for metallic materials-General rules 焊接工艺规程及评定的一般原则 |
China National Standards Qualification of wel |
English PDF |
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