washer & gasket 1.Curved Spring Washers, 2.Shim Rings, Plain Washers 3. ... washer & gasketCurved Spring Washers1, Material:NBR,CR,HNBR,ACM,SBR,EPDM,IIR,NR,EP,Silicone,Viton etc.2, Hardness: Between 30 ... specific drawings SizeWe can manufacture according to your sizeMaterialNBR,VITON,EPDM,SILICONE,HNBR,etc.CertificationSGS,it is complied with ROHS standardPackinginner ...