[国外标准] ASTM A320/A320M-08
[国外标准] ASTM A320/A320M-08 Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for
[国外标准] ASTM A320/A320M-07
[国外标准] ASTM A320/A320M-07 低温用合金钢栓接材料
[国外标准] ASTM A320/A320M-05a Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for
[国外标准] ASTM A320/A320M-05
[国外标准] ASTM A320/A320M-01 低温合金螺栓
[国外标准] ASTM A320-A320M-2015a
[国外标准] ASTM A320-01低温合金螺栓