Dongying Zhao Xin Industry And Trade Co., Ltd. was established in 2001, which is a professional manufacturer engaged in the research, development, production, sales and service of oil packer, tubing anchor, torque anchor, etc. down hole tools. We are located in Dongying City normally called Petroleum City with convenient transportation access. Dedicated to strict quality control and thoughtful customer service, our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction. In recent years, our company has introduced a series of advanced equipment including horizontal lathes, digital controlled lathes, milling machines, machining centers. In addition, we have obtained ISO9000, first order market entry qualification, and API. Selling well in all cities and provinces around China, our products are also exported to clients in such countries and regions as Russia, Kazakhstan, America. We also welcome OEM and ODM orders.