Shanghai Tonsor Machinery Co., Ltd is located in Shanghai, is a well-established Chinese bearing supplier. We have over 10 years experience on the OEM, ODM Service, any requirement for Non-standard bearings is easily fulfilled by us due to our vast knowledge and links in the industry.Shanghai Tonsor Machinery Co., Ltd is located in Shanghai, is a well-established Chinese bearing supplier. We have over 10 years experience on the OEM, ODM Service, any requirement for Non-standard bearings is easily fulfilled by us due to our vast knowledge and links in the industry.