兑水 发表于 2009-9-9 15:57:13

ASTM A 877-2005 铬硅合金阀弹簧级钢丝

A877/A877M-99 Standard Specification for Steel Wire, Chromium-Silicon Alloy Valve Spring Quality
页: [1]
查看完整版本: ASTM A 877-2005 铬硅合金阀弹簧级钢丝