GB/T 93-1987
Spring washers
GB/T 7244-1987
Heavy duty spring washers
GB/T 7245-1987
Curved spring washers
GB/T 7246-1987
Wave Single coil spring lock washers
GB/T 859-1987
Single coil spring lock washers,Light type
GB/T 956.3-2017
Conical spring washers
GB/T 9074.26-1988
Single coil spring lock washer for assembly
DIN 127A-1987
Spring lock washers with tang ends—Type A
DIN 127B-1987
Spring lock washers with square ends—Type B
DIN 128A-1987
Curved spring lock washers-Type A
DIN 128B-1987
Wave spring lock washers-Type B
DIN 2093-2013
Disc spring washers-Series A
DIN 2093-2013
Disc spring washers-Series B
DIN 2093-2013
Disc spring washers-Series C
DIN 6796-2009
Conical spring washers for bolted connections
DIN 6905-1990
Spring lock washers for screw and washer assemblies
DIN 6908-1995
Conical spring washers for screw and washer assemblies
DIN 6913-1987
Spring lock washers with safety ring—Type A
DIN 6913-1987
Spring lock washers with safety ring—Type B
DIN 7980-1987
Spring lock washers with square ends for cheese head screws
