... We could supply many kind of standard washer and non-standard washer 2:)Material:SS,Coper,Carbon steel,copper ... China (Mainland)Brand Name: DFModel Number: DIN,ANSI,GB.JIS,BSMaterial: Copper,Carbon steel ,stainless steelPackaging & DeliveryPackaging Detail ... steel ,stainless steel,brassStandardstandard fasteners (GB, DIN, ANSI,JIS AND ) and non-standard. Packingplastic bag + carton box ...