Shanghai Yingda Electronics are a chinese professional catv products manufacturer for 15 years with ISO9001 quality certificate,and we can customize according to your need.Our main products are:attenuator, equalizer,pad,optical node,diplex filter,splitter,connector,and other amplifier parts and optical nodes or equipment. Shanghai Yingda Electronics Contact Person:Michaelia Wang w w w.catv-yingda.c o m syd2"at"yingda-cablecatv.c om