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The announcement
The announcement
04-22
/ 2022
Gb-t12459-2005 [1] steel seamless forged pipe fittings
Gb-t12459-2005 [1] steel seamless forged pipe fittings
04-22
/ 2022
The most complete welding defect cause and treatment method in history must be collected
1、Defect name: stomata2、Defect name: bite edge3、Defect name: slag inclusion4、Defect name: lack of penetration5、De
03-31
/ 2022
7 items
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