- boiler pipes
- 2017-01-17 18:28
- These pipes are seamless tubes for heatresistant steels and for high pressure boiler.Changzhou Tongchuang Tube Industry
- API5L
- 2017-01-17 18:28
- This kind of pipes is petroleum and natural gas industries steel pipe for pipeline transportation systems.Changzhou Tong
- seamless steel pipe to ASTMA179
- 2017-01-17 18:28
- This kind of pipes is seamless cold drawn low carbon steel heat exchanger and condenser tubes.Yes,This is Changzhou Tong