Our major U.S. standards, spring washer: model AMSE, ANSI 'B18, 212, specifications for DIN128B, M52, M3 - DIN6905, specifications M3 - M20.

German standard spring washer: type: DIN127B, DIN7890, specifications, DIN128B, M52 M3 - DIN6905, specifications M3 - M20.

The British standard spring washer: type: BS1802, specifications 1/8 "- 1 1/2. ` can&9 spring washer: model for JIS - 2, specifications M2 - M36.

National standards spring washer: model GB93 76, GB93-87, specifications non-standard pieces according m3-m64; GB859-87, specifications non-standard pieces according m3-m64; GB7244-87 heavy ball pad, specifications, and M48 M6 - GB7245 saddle type, GB7246 wave pattern, GB9074 combination ball pad, and production of various kinds of non-standard and stainless steel and tin bronze ball pad