Shenyang Xincheng Petroleum Machinery Manufacturing Co. Ltd.,  founded in 1990, is specialized in petroleum machinery R&D, production-manufacturing, sales and terminal service. The company adheres to “quality first/customers supreme/technology advanced/scaling new heights” with strong technical strength and has obtained 29 granted patents until now, including 8domestic inventive patents, 6 international patents, 15 utility model patents, and meanwhile gained many honors such as “High and New Technology Industry”, “National Key New Product”, “National Torch Plan”, “Major S&T Project...