SMLSLine Pipe (Seamless Steel Pipe)
The specification for SMLS line pipe is outer diameter 13.7 - 609.4mm and wall thickness2.24-30.96mm. Themanufacturing process is as follows. Seamless steel tube - inspection -skinning - inspection - heating - perforation - pickling - grinding –lubrication and air drying - welding head - cold drawn - solution treatment -pickling – pickling passivation - inspection – coldrolling - deoiling – crop end - air drying – internalpolishing – external polishing - inspection - logo – product packaging.