[国外标准] ASTM A325-09
[国外标准] ASTM A325-07 Standard Specification for Structural Bolts, Steel, Heat Treated, 120105 ksi Minimum Te
[国外标准] ASTM A325-06
[国外标准] ASTM A325-04 Standard Specification for Structural Bolts, Steel, Heat Treated, 120-105 ksi Minimum T