Called the internal-combustion engine fittings factory of Shijiazhuang originally. Redsun Internal-combustion Engine Fitting Co.,Ltd Shijiazhuang is the main products have valve , piston selling , the main axle bush , connecting rod tile. For Yiqidazhong 、 Dongfeng 、 Shanghaidazhong 、 Shenlongfukang 、 Tianjinqiche 、 Dachai 、 Jiqi 、 Hangfa 、 Shangchai the host computer factory forms a complete set and uses.The company has set up marketing network in all parts of the country, and sell the products to a dozen countries and regions.