1967: Mr.Lin Shi-Tswan established TUNG LUNG VALVE CORP.
1981: The 1000m² factory was built on Yenping Road, Taipei.
1986: Capital was increased to bring in new technology along with processing, drilling and testing.
1988: Cooperated with famous firms of Europe, East South Asia & Japan by OEM.
1990: Expanded land property to 3300M2 in Tayuan Hsiang, Taoyuan County.
1991: CNC machining equipment was brought in.
1992: Subsidiary company-TUNG FA VALVE CORP. was established.
1996: Carried out ISO-9002 regulations.
1998: ISO-9002 qualified.
2002: CE 0035 qualified.
2005: Self-developed PN 40 SS316 items.
2006: Achieved the goal of extending our products to 36 countries.
2008：Expanded the land property and re- built the factory of 5000m².