boiler pipes These pipes are seamless tubes for heatresistant steels and for high pressure boiler.Changzhou Tongchuang Tube Industry
API5L This kind of pipes is petroleum and natural gas industries steel pipe for pipeline transportation systems.Changzhou Tong
seamless steel pipe to ASTMA179 This kind of pipes is seamless cold drawn low carbon steel heat exchanger and condenser tubes.Yes,This is Changzhou Tong
