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ASTM tau tshaj tawm tus qauv tshiab hauv xyoo 2015 (tom qab tso tawm 2015 ASTM Volume 01.08) uas suav nrog rau 6 tus qauv bolting tam sim no nyob rau hauv ib lub kaus specification. Tus qauv tshiab, ASTM F3125, yog lub npe "Specification for High Strength Structural Bolts, Steel thiab Alloy Steel, Nws ...Nyeem ntxiv»
