We are one of manufactures of communications infrastructure products in Mainland China,As an ISO9001:2000 approved company,all of our products verified by CE,ETL,UL.We specializes in innovative line of structured cabling products and accessories,including : Copper System Cat.3/Cat.5e/Cat.6 keystone jack,Patch cord ,Patch Panel and Faceplate,ect; Fiber Optic System : FO Patch cord,FO  pigtail,FO Patch Panel,FO adapter, attenuator and so on