Tsu Yun Sen Corp.--Engine valves, valve guides, valve seats
Founded in 1995, the ISO 9001: 2000 approved Tsu Yun Sen Corp. is a specialized maker of engine valves, valve guides, and valve seats. The company globally markets its quality products under its own brand TYS. Tsu Yun Sen is very confident of its production technology, product quality, and pre- a... Full Story