Shanghai Yingda Audio & Video Device Co.,Ltd.

Shanghai Yingda Audio & Video Co.,Ltd. established in 1995 specializes designing, manufacturing and disturbing professional CATV/SMATV equipments accessories. As a accessories equipment manufacturer, we produce not only (fixed or adjustable attenuator, equalizer, duplex filter, gas ...

Telephone：0086-21-64469994Address：NO.889 WuZhong Rd., Shanghai, China, China