Hi Sir/Madam,Our company established in 1998, is a successful specialized manufacturer of petroleum machinery. We are specialized in producing wellhead equipments, tubing head, casing head, Xmas tree, manifold, all kinds of valves, water injection wellhead assembly, BOP, as well as all spare parts.We have about 500 employees, 250 sets of various cold & heat processing equipment and quality inspection instruments and equipment.Our goods have big market in China oilfields and our goods are also exported to USA, Canada, India, Russia etc countries.We have ISO, API 6A,6D,16A,16C, Q1 certificates.We sincerely wish to establish long term business relationship with you.Best Regards,Jessica