... Q2352)345*8-10mm3)Hot rolled,high quality 4)Seamless steel pipeseamless carbon steel pipe hot rolling: 1 ... 21mm-356mm 3. API & ISO certificated 4. Carbon seamless steel pipespecifications:1.Standard: API 5CT,5L; ASTM, BS ... 400,000tons per year.We supply seamless steel pipe hot rolling,seamless steel pipe,alloy steel pipe,if ... Jiment Group Jinhai Steel Pipe Co., Ltd. seamless carbon steel pipe