we are special Manufacturer is specialized in kinds washers&Gaskets more than 10years, such as Followed:
Spring washer
STANDARD:DIN127B,DIN127,DIN7980,DIN137B--
SIZE:British System #3/8~3Metric (M5-M58)
SURFACE:Black, Galvnized,HDG---
MATERIAL:Carbon steel,stainless steel,brass--