Our company mainly produces have various kinds of washers in different materials such as flat washer,spring washer etc. (1) standards: DIN125A&B,DIN126,DIN127B,DIN432,DIN433,DIN434,DIN462,DIN1440,DIN436,DIN9021,DIN6916,ISO,AS,NF,JIS,BS,ASTM,SFS,GB etc and non-standard