ZMTOOL Shanghai Co., Ltd is the largest manufacturer of bearing relative products in China. We specialize in design and manufacture the bearings Installation and removal, maintenance products for years. Relying on the strong technical support from our partners, Shanghai Jiaotong University and Shanghai Bearing Research Institute, depending on excellent quality and competitive price, ZM products enjoy good reputation from customers home and abroad. Especially in our domestic market, we have offered standard and customized products to numerous famous world factories for years. Welcome your enquiry and hope to have pleasant cooperation with you!