Tianjin Richsen Oil Equipment Co., Ltd is an OCTG Comprehensive solution provider based on China serving global market. We offer integral solution ranging of Procurement, Marketing, Information, Research and Development, Production, Processing, Logistics. Oil Coupling is our core product, we dedicated to create the biggest coupling spot supermarket serve clients all over the world. RICHSEN always keep 100, 000 coupling storage include Casing Coupling, Tubing Coupling with various steel grade, size, thread type. Also we own one seamless pipe mill and two Heat Treatment Line as well as large quantity of raw materials in order to guarantee fastest delivery and best service for all our customers. We own production base in TIANJIN, SHANDONG and LIAONING Province, have served Chinese Oilfield for more than 15 years. RICHSEN'S products are also exporting to North America, Middle East and Southeast Asia, won unanimous applause from both domestic and abroad customers. We warmly welcome you visit us to develop businesses.