GB/T 902.1-1989
Weld studs for manual welding—Type B —Standard type
GB/T 902.2-1989
Types B welding studs for mobile arc welding
GB/T 902.2-1989
Types A welding studs for mobile arc welding
GB/T 2670.1-2017
6-Lobe pan head tapping screws-type C
GB/T 2670.1-2017
6-Lobe pan head tapping screws-type R
GB/T 2670.1-2017
6-Lobe pan head tapping screws-type F
GB/T 2670.2-2017
6-Lobe 90°flat head tapping screws-type C
GB/T 2670.2-2017
6-Lobe 90°flat head tapping screws-type R
GB/T 2670.2-2017
6-Lobe 90°flat head tapping screws-type F
GB/T 2670.3-2017
6-Lobe 90°oval head tapping screws-type C
GB/T 2670.3-2017
6-Lobe 90°oval head tapping screws-type R
GB/T 2670.3-2017
6-Lobe 90°oval head tapping screws-type F
GB/T 2671.1-2017
6-Lobe low cap screws
GB/T 2671.2-2017
6-Lobe cap screws
GB/T 2671.2-2017
6-Lobe knurled cap screws
GB/T 2672-2017
6-Lobe pan head screws
GB/T 2674-2017
6-Lobe 90° oval head screws
GB/T 902.3-1989
Weld studs for capacitor discharge welding-type A
GB/T 902.3-1989
Weld studs for capacitor discharge welding-type B
GB/T 1096-2003
Rectangular key-Type A