Tube Mills/Seamless - AIST
Manufacturer of seamless steel pipes and tubes, including OCTG tubing and casing API 5CT J55~P110, API 5DP drill pipes E75~S135, oil line pipes API 5L Gr.B~X65, boiler tubes ASTM A179/A192/A210, Heat resistant tube DIN 17175 ST35.8/ST45.8, …
