Shenzhen Tongyi Corp was established on December, 1992. Now, it has a spring & Metal factory, a plastic injecting & mold factory and a trade company. The main products we have are various springs, stamping parts, precision parts, plastic injection parts and molds.
For 14 years, Tongyi Corp. has held the strong belief of "honesty, cooperation, and progression" to direct its marketing campaign. With advanced techniques, scientific management, strict quality control and comprehensive service, Tongyi has obtained successful development.
The company enhances internal management, focuses on control of process and details; strictly follows national and industry standard. We were the first obtaining the ISO9001 national and international Certificates in the industry in 1997 and has established managerial system of sales procedures, which ensure effectiveness and smoothness among product development, production, sales and sales service. 
"Quality as base and innovation as source" is our business concept; "honesty, cooperation, and progression" is cultural essence of Tongyi Company and principle of Tongyi people. Tongyi people抯 commitment is 搕o be first class enterprise, to produce top quality products and provide superior services".