兑水 发表于 2009-10-30 09:43:12

ASTM E 446-1998 钢浇铸厚度在2 in(51mm)以下用基准X射线照相

E446-98(2004)e1 Standard Reference Radiographs for Steel Castings Up to 2 in. in Thickness
页: [1]
查看完整版本: ASTM E 446-1998 钢浇铸厚度在2 in(51mm)以下用基准X射线照相