Coreconn Fiber Optic Co.,Ltd was established in March 2006 and Our company is a professional fiber optics products manufacturer Located in Shenzhen, we are focus on producing passive optical communication devices mainly like Fiber Patchcord ,Fiber Adapters ,Fiber attenuators ,etc ,all these items have passed Strict quality inspections and have get certificates ,now ,we have a 5000 squares meters workshop. And have set up a good cooperation with many carriers, all of our products have get a good sales inside and outside of China.