Introduction
Lianhui has an integral quality management system, all supplied petroleum products and equipment strictly comply with international standards and API specifications. we mainly produce & sell float valve, switching Kelly cock with pressure, multi-cycle circulating sub, casing cleaning tools, IBOP for top drive, non rotatory scraper. packer series, bridge plug, cementing retainer etc., Our mission is to provide the best quality of petroleum equipment and technical services for clients.
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