Founded in 1993, our company is located in Qingzhou, a beautiful city. With the pace of petroleum industry rapidly rising up and Qingzhou machinery industry flourishing, Shandong Changqing Petroleum Hydraulic Machinery Co., Ltd. has an annual production capacity of 150 well drilling pumps and 30,000 hydraulic pumps. By introducing advanced technology, facilities and qualified technicians, we have become one of the main domestic enterprises which make machinery and accessories used in petroleum, mines, metallurgy and engineering. Our company was approved with the quality system attestation of...