The company is specialized in the design, manufacture and marketing of Helical Hardware Fittings for ADSS/OPGW/OPPC cable, Conductor, Grounding wire, Stay wire and railway Overhead Line System; it is also worked on the design /installation /consultation /maintenance for. The company is specialized in the design, manufacture and marketing of Helical Hardware Fittings for ADSS/OPGW/OPPC cable, Conductor, Grounding wire, Stay wire and railway Overhead Line System; it is also worked on the design /installation /consultation /maintenance for. HENGTONG invests 5% of its sales volume annually in researching new products and technology of the future. HENGTONG has realized factory informatization, lean manufacturing and management informatization. It has systems in place to trace quality. Certified by: CE, KEMA, BV, ABS, DNV, CC, UL, GL. 25th December, 2014, the EHV AC Electric Power Transmission and Transformation Project which from Zhejiang North to Fuzhou in Fujian Province was officially put into operation. With the widdly application of Fig-8 self-supporting optical cable, hardware fittings for Fig-8 cable are widdly used at. We are a leading manufacturer in providing turnkey solution of fiber optic communication, FTTH, submarine cable system, overhead transmission system, RF cable system and premise cabling. Founded in January 1999, it is the first domestic company specializing in the production of optical fiber indoor cables.