China National Standards

China 5：Quality GB Standards List

  •  China "5：Quality" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 34630.5-2017 Friction stir welding—Aluminium and its alloys—Part 5：Quality and inspection requirements
    搅拌摩擦焊 铝及铝合金 第5部分：质量与检验要求    		 China National Standards
    5：Quality
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