The factory of Serjeant Industrial Co., Ltd. In Taichung, Taiwan and established in 1992 is making the many kind of powder metallurgy(P/M) parts which is made with metallic powder through forming and processing by automatic machines. Their main products are sewing machine parts like as fixed supports, connecting rods, cams, and eccentric wheheels; auto and motorcycle parts like as shock absorber and carburetor use valve cases, transmission gears, transmission case gears, oil pump inner/outer, rotors, auto power window gears brake lining; bicycle accessories, pneumatic tool parts like as differential gears, gasifier bases, bottom covers, cylinder pistons, torque wrenches, and socket wrenches; house-hold electrical appliances like as bearings for electric fans, hair dryers, etc.; hardware parts like as automatic door casters, door lock parts, etc.; and machine parts like as sliding plates, transmission wheels, and fixed blades, and so on . These parts are being used in all of the world. Samples or drawings are very welcome! The material can be use Iron based, Copper (Bronze & Brass) based, and Stainless steel powder.