Tianrong is a high-tech enterprise excelling in the field of water-blocking materials and semi-condcuctive shielding shielding materials for optical fiber cable and power cable.Tianrong distinguishes itself with its large scale,mature management system,productive innovations,advanced technology and giant market share.Toady,Tranrong has developed into the major supplier of water-blocking materials and sem-conductive shielding materials in China.