ygs67 发表于 2015-6-15 11:21:40

ASTM B16 B16M-10(2015)

ASTM B16 B16M-10(2015) Standard Specification for Free-Cutting Brass Rod, Bar and Shapes for Use in Screw Machines.pdf

admin 发表于 2015-6-15 11:27:20

谢谢您的分享,金币已奖励!
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