... 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 / ... our work plantAny questons are welcomed! Tianjin WANLEI STEEL PIPE CO., LTDTel/Fax: (0086)022-25343802 Contact Person: Alice WangAdd ... north road, Tanggu , Tianjin , China ASTMA53/A106 Gr.B carbon seamless steel pipe