... Steel Tube Manufacruring Co.,Ltd. are widely not only used in auto linersoil tank of jackoil tank of lifting electrical ... Crustliquid tank of compressortunnel and machinery project but also used for normal and low pressure boilerheat exchanger and condenser ... , EN10305-2, EN10210, EN10216, BS3059, BS3601, BS3602, BS3606 etc. Carbon steel grade : SAE1010, SAE1020, SAE1035, SAE1045, ST35, ST35.8, ...