We produce many various steel couplings and joints of OCTG and line pipes, as well as various reduction connections and mechanical products etc ranging from 1.9"-20", and grades of J, K, N80 etc. Our main products: OCTG per API 5CT, line pipe per API 5L / ASTM A106 / ASTM A53, various steel couplings and joints of OCTG and line pipes, as well as various reduction connections and mechanical products etc. Total annual output is 550,000 pieces coupling (ranging from 1.9"-20", and grades of J, K, N80 etc.) and more than 20,000tons OCTG products and line pipes, and other mechanical products.

coupling