Sichuan Tianyi Information Science & Technology Stock Co., Ltd.established in 1986, is the largest manufacturer of a large range of Heat Shrinkable Joint Closures for Telecommunications Cables in China. We are also one of leading manufactures of various telecommunication equipment such as Cable End caps, Aerial Cable Enclosures, Cable Splice Closures, Fiber Distribution Frames, Optical Cable Connection Cabinets, Optic Active/Passive Devices and ADSL modems. We are ISO9001 certificate holder and High-tech Enterprise approved by China Science & Technology Ministry. All our products have obtained China IT Network Access Certificates. They predominate the domestic market and also enjoy large demand and good reputation in southeastern Asia, southern Asia, Middle East and Africa.