WUE SHYANG MACHINERY CO., LTD. WUE SHYANG MACHINERY .
YI SHYANG MACHINERY CO., LTD was established in 1978, Chia Yi City, Taiwan. At an initial stage, YI SHYANG was engaged in the process and production for parts and hardware. In 1985, YI SHYANG started researching and developing ball valves which became a reputable manufacturer in the BALL .