Rui'an Hai'an Electromotor Ring Factory is one of the leading lock washers internal teeth manufacturers and suppliers in China,Website:http://www.china-haian.com, welcome to wholesale cheap lock washers internal teeth from our factory.Quick DetailsPlace of Origin: Zhejiang, China (Mainland)Brand Name: Hai'anModel Number: WasherStandard: GBProduct Name: WasherMaterial: 65Mn spring steelSize: All sizeColor: blackSurface processing: Black, Zinc plating, Nickel platingPackage: Carton packing or wooden packingHistory: Founded in 1983Original: RuianPackaging