We mainly produce not only the metallic flat washers with all different standards : such as ,DIN9021 ,125 , 126 , 436 , 440 , 7989 , 7349 , 433 ; USS,SAE,ASTM-F436 ; NFE : Z.M.L.LL series ; British standard : BS4320-A.B.C.D.E.F.G series ; JIS. But also all kinds of nonstandard flat washers, and stampings. The produce and sales are in whole. We ensure the quality and quantity about the goods, and delivery prompt. The price is reasonable for you. Welcome to phone us or review the factory. Thanks! Best wishes.