- spring washer ,steel fastener
- 2016-10-28 14:33
- 1.American stander spring washer:Type:ASMEB' AMSE, B18, 21.1 Specification: NO.4-2
- spring washer,stander
- 2016-10-24 16:14
- Our major U.S. standards, spring washer: model AMSE, ANSI 'B18, 212, specifications for DIN128B, M52, M3 - DIN6905, spec