... T/T,L/C or negotiable ASTMA53/A106 Gr.B carbon seamless steel pipe Our main products.Carbon SteelASTM/ ... ASME A 53 GR. A & B , ASTM A 106 GR. A , B & C .API 5L GR. B, API 5L X 42 / ... , high/low temperature and corrosion and is used inthe industries of petroleum, chemicalengineering and. Electric power as well as ... central north road, Tanggu , Tianjin , China ASTMA53/A106 Gr.B carbon seamless steel pipe