Qingdao Xinghe Keer Machinery Technology Co., Ltd.(formerly known as Qingdao Yanhai Machinery Manufacturing Co., Ltd.) mainly engaged in welding of corrosion-resistant pipeline products including pipe fittings, flanges, forgings, valve parts and special-shaped parts, as well as the wear-resistant treatment of wear-resistant parts including cutting gear, middle groove, bucket tooth tip, tooth base, guard plate, wear-resistant plate (lining plate, knife plate, silo, etc.), crushing teeth, stirring blades, sugarcane hammer, sugarcane blade, steel mill roll and hydraulic prop etc