Profile: Shanghai Zhenling Hardware Co., Ltd. is a manufacturer of custom machined parts. We are an ISO 9001:2000 certified company. We specialize in the design, manufacture, assembly & sale of CNC machined components, pipe fittings, fasteners and gears. We manufacture various pipe fitting products including elbows, pipe caps, flanges and reducers. We also manufacture various fasteners such as screws, washers, bolts, studs and nuts.