... , 2.Shim Rings, Plain Washers 3.Washers for Bolts, etc washer & gasketCurved Spring Washers1, Material:NBR,CR,HNBR,ACM,SBR,EPDM ... from international famous brand.2.Without demaning tooling charge for batch quantity3,Small quantity is accepted4,We have SGS Certification,it ...