The main domestic customers of Shanghai Gantong Company are Shanghai Volkswagen Co., Ltd., Shanghai General Motors Co., Ltd., FAW-Volkswagen, Changan Ford, SAIC-GM-Wuling and Shanghai Diesel Engine Co., Ltd., so the quality of the company's auto parts is very good.
The company has complete quality testing equipment, established and improved a strict quality assurance system, and has successfully passed ISO9002, QS9000 and VDA6. 1 quality system certification. In order to meet the development requirements of automobile industry, the company has passed ISO/TS 16949 quality certification, ISO 1400 1 environmental system certification and OHSAS 1800 1 occupational safety system certification.