... Q215, Q235, Q345B, X42, Gr. B3. Use: used for low pressure liquids conveyance, such as water, gas, and construction4. specifications: 1 ... .0--8.0 Company Introduction Tianjin HENGJI Steel Co., Ltd is a group company , affiliate includes Tianjin HengXing Steel Industry Co., ... Coil and also Pickled Plate.Hot dipped galvanized steel pipe is produced with a technology in which pipes react with liquid zinc ...