Shenzhen Tongyi Trade Co.， Ltd. is a subsidiary of Tongyi Corp. which was founded in 1992. Tongyi Trade is mainly engaged in six main series of products; hardware， metal crafts， aluminum products， doors， plastic products and wire mesh. 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 developed from initially being a hardware factory to five subsidiaries including a hardware factory， craftwork factory， door company
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