... Ltd. is a professional manufacturer of seamless steel pipe factory, and is the largest in the local ... customers. TYPEst37.4 seamless steel pipe (cold drawn steel pipe )StandardDIN17175,DIN1626,DIN2448,DIN17120,API 5L, API 5CT, ASTM A106, ASTM A53, ... or bulk, Container by sea.Applications rangePetroleum, chemical, power; (oil, gas, water) liquid transport; shipbuilding, construction, steel structure; ...