Yancheng Hengtong Petroleum Machinery Manufacture Co., Ltd. maintains a comprehensive Quality Assurance System in compliance with ISO 9001, ISO 14001 Certificates and API Certificates issued by American Petroleum Institute ( API ) and is equipped with a wide range of over 120 sophisticated CNC and Conventional Machine tools to meet its capability for petroleum machinery production. The company specialized in design, manufacture and complete supply of API certified oilfield equipment. The spherical / annular & ram type blowout preventers, drilling accessories, BOP accumulators, choke and kill manifolds, mud gas separators, wellheads and christmas trees. The products we produced here are for land and offshore platform drilling for non H2S and H2S field services. Our products are used widely in China and overseas to America, Europe, Africa, Middle Asia, Middle East and Southeast Asian countries and regions. We cordially welcomes you for mutual benefit and extensive business co-operation with us.