Shandong Haote Petroleum Equipment Co., Ltd. was established in 2010, which lies in the Economic Development Zone of Dongying City, Shandong Province, with a total investment of 110 million yuan. Our business covers the export of pumping units, oil machinery and equipment, oil field drilling equipment and the manufacturing of tanks, energy-saving pumping units. The leading products of our company are series of beam pumping unit, among which the energy-saving low stroke frequency beam pumping unit has received the national "Utility Model Patent Certificate" (Patent No.:...