size:1020*10-3020*20
Name:1020Spiral steel pipe-3020Spiral steel pipe
Material:Q235A, q235b.q23b, 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb, Q345, L245, L290, X42, X46, X70, X80.
link:http://www.jiade-group.com
Large Diameter Spiral Steel Pipe/Tube