... welding →leveling→ forming → rolling → high-frequency welding → deburring →cooling → sizing → rough straightening → cut To Length → drop tube5. Rolling speed: 20 ... -300M。Storage capacity: 150-300M4. Forming, welding and sizing the main machine(1)Leveling It is equipped with nine ... . Foundation installation (frame), it is shared with welding and sizing.(3)Guide, welding extrusion, and scraper(a) 1 pcs ...