GB/T 9074.18-1988
Cross recessed pan head tapping screws and plain washer assemblies-type C
GB/T 9074.18-1988
Cross recessed pan head tapping screws and plain washer assemblies-type F
GB/T 9074.19-1988
Cross recessed pan head tapping screw and large plain washer assemblies-type C
GB/T 9074.19-1988
Cross recessed pan head tapping screw and large plain washer assemblies-type F
GB/T 9074.18-2017
Cross recessed pan head tapping screws and plain washer assemblies-type C-type H
GB/T 9074.18-2017
Cross recessed pan head tapping screws and plain washer assemblies-type F-type H
GB/T 9074.18-2017
Cross recessed pan head tapping screws and large plain washer assemblies-type C-type H
GB/T 9074.18-2017
Cross recessed pan head tapping screws and large plain washer assemblies-type F-type H
GB/T 9074.18-2002
Cross recessed pan head tapping screws and plain washer assemblies-type C-type H
GB/T 9074.18-2002
Cross recessed pan head tapping screws and plain washer assemblies-type F-type H
GB/T 9074.18-2002
Cross recessed pan head tapping screws and large plain washer assemblies-type C-type H
GB/T 9074.18-2002
Cross recessed pan head tapping screws and large plain washer assemblies-type F-type H