... 2.Shim Rings, Plain Washers 3.Washers for Bolts, etc washer & gasketCurved Spring Washers1, Material:NBR,CR,HNBR,ACM,SBR, ... resistance etc.4, Certification: ISO9001:2008,ROHS,FDA5, Packing: plastic bag&carton box or according to your requirements.6,Application ... .CertificationSGS,it is complied with ROHS standardPackinginner packing is plastic bag outer packing is carton box MOQ1,000pcsDescription1,All ...