Good quality comes to start with; service is foremost; organization is cooperation" is our enterprise philosophy which is regularly observed and pursued by our firm for Octg Petroleum Coupling, K55 Casing Coupling, T H40 Pump Column Coupling, Api Long Thread Casing Couplings,Api 5ct Kejsing akkoppjament . Our intention is to assist clients understand their ambitions. We are earning wonderful attempts to realize this win-win predicament and sincerely welcome you to be a part of us. The product will supply to all over the world, such as Europe, America, Australia,Latvia, Comoros,Sweden, kazan.We have now 48 provincial agencies in the country. We also have stable cooperation with several international trading companies. They place order with us and export solutions to other countries. We expect to cooperate with you to develop a larger market.