Luoyang Yujie specialize in designing and manufacturing large size non-standard machinery spare parts, including shafts, gears, sprockets, couplings, mill liner, hammer, bearing support, vibration exciter, vibrator housing, support roller etc. the products widely used in the field of mining, cement, steel mill, petroluem, power plant, paper mill, cigar mill etc. the products can reach more than hundred types,which can meet different national standards.