washer & gasket 1.Curved Spring Washers, 2.Shim Rings, Plain Washers 3. ... resistance,Ozone resistance etc.4, Certification: ISO9001:2008,ROHS,FDA5, Packing: plastic bag&carton box or according to your requirements.6 ... ,etc.CertificationSGS,it is complied with ROHS standardPackinginner packing is plastic bag outer packing is carton box MOQ1,000pcsDescription1,All of our ...