Non-Standard Metal Parts manufacturer / supplier in China, offering DIN7505-a Chipboard Screws Stainless Steel 304 316 Yellow Zinc Plated DIN 7505-a Pozidrive Countersunk Head Screws for Chipboard, Heavy-Duty Carbon Steel Yellow Galvanized Hex Flange Nut Anchors, Stainless Steel Metal Gasket External Teeth Lock Washers DIN6797 Toothed Lock Washers Serrated with Internal Teeth and so on.