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JS Hardware, registered as Jiangsu Shuanghui Power Development Co., Ltd. in China, was found in 1974,
completely private owned, and now is the largest manufacturer of hardware /fittings and accessories for transmis-
sion line and substation in China.
At JS Hardware, there is an experienced R&D team with industry well-recognized design tools, especially for
new materials, new product structure and production engineering.
JS Hardware designed and supplied hardware/fittings and accessories for the first AC 750kV, 1000kV,
DC 800kV transmission line in China, like 1000kV Yangtze River Crossing project which has a span more than
5500 feet.
Up to now, the total length of 500kV transmission line JS Hardware has served in China and worldwide isapprox. 4200 miles. JS Hardware still proudly keeps ZERO failure rates record so far.
JS Hardware is located in Jiangdu city, Jiangsu province and one hour drive to provincial capital Nanjing City
and three hours drive to Shanghai.
AboutJS Hardware
FactsJS Hardware
Founded in 1974.
Production capacity per year:
Aluminum casting (includes sand casting, permanent mold casting and die casting): 5500 tons.
Forging & stamping: 5700 tons
Machining (includes dead end, joint sleeve, grading & shielding ring and others): 2000 tons
Hot dip galvanizing: 8000 tons
Grey iron casting and malleable cast iron: 5000 tons
Preformed transmission line hardware for conductor , OPGW/ADSS: 1000 tons