liuxilin1215 发表于 2017-6-26 09:09:24

ASTM A354-11 Standard Specification for Quenched and Tempered Alloy Steel Bolts,

ASTM A354-11 Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners


admin 发表于 2017-6-26 14:52:45


谢谢您的分享,金币已奖励!
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