Shijiazhuang Huaneng Power Fitting Co., Ltd. is a professional manufacturer for power fitting.Currently our company has the ability to produce 1000,000 sets of various preformed helical fittings per year, including OPGW and ADSS fittings for fixing optical cables. The fittings for fixing conductor lines and earth-wire lines have passed the tests issued by National Electric Power Construction Research Institute and Shanghai Electric Cable Research Institute and passed the evaluation of the ...