a. Tolerance:0.01mm b. we can according customer drawing or sample to produce kinds of hardware fittings. 1.Size: according to the drawing or sample.2.Material: carbon steel, alloy steel, stainless steel, cast iron, brass, aluminum and etc.3.Packaging: 1pcs/box,15kg/carton or according to customer requirements.4.Process: turning,milling,stamping, deep drawing, welding, sheet metal fabrication, ...