About Us


TSUN CHEN INDUSTRIAL CORP. (TC), established in 1990, specializes in the research, development, and manufacture of special washer nuts assembly and screw washers assembly. Over 30 years, TC’s primary strategies are to satisfy customers’ needs, provide the best customized services, and assure the quality of the highest standards.

Through being committed to certification under ISO 9001: 2008 and understanding the importance of the quality control and the customer satisfaction, TC constantly strives to improve in order to achieve the goal of sustainable management.

History of the Manufacturing

  • 1990 – Starting with External Tooth Lock Washer Nut Assembly
  • 1994 – Focusing on Conical Washer Nut Assembly
  • 1998 – Applying the Quality Control System: QS 9000
  • 2000-2003 – Developing Clamp Washer Terminal Screw Assembly
  • 2002 – Expanding to 38 Assembly Machines
  • 2013 – Implementing ISO 9001: 2008