Changzhou Changbao Precision and Special Steel Tube Co.,Ltd

we are one of the biggest  manufacturers of seamless steel tubes in china .name is changzhou changbao precision & special steel tube co.,ltd which is joint venture of jiangsu changbao steel tube co.,ltd and hong kong kaixin developing co.,ltd ,which is specializing in producing seamless steel tube.we have an aggressive team composed by elites from management and  technology field and we have a perfect product line of seamless steel tube our products exported to overseas like the united states  canda,japan ,korea and so on .boiler used tube ,precision steel tube
,petroleum tube,ship used tube etc are major products of us .currently we have developed T series boiler tube and internally ribbed tube which has met the ASME'ASTM standard like ASTMA213T92 T91 T23 T22 T12 AND OTHER STANDARDS SUCH AS EN BS JIS AND SO NO .