Sell Spiral Steel Pipe, Spiral Steel Tube, Spiral Steel Duct Details: OD 10mm-1200mm(1/8-48) WT 2mm-60mm Length Random Length: 3.5m-12m, Or fixed length 5.8m Or as the customers requirement. Standard ASTMA53, ASTMA106, API5L, DIN17175, GOST8731/8732, G3457/G3452, BS1387-1985, GB/T3091-2001, GB/T13793-92, GB/T6728-2002 Material Q235B, 10#,20#,45#, 16Mn, 15MnV, A53B, A106B, API5L B, A192, A179C, A213-T12, A213-T22, A335-P1, A335-P2, A333, ST37, ST33, ST37-2, ST35.8 ST52 etc. Certificate API certificate and ISO certificate. Surface Rust remove, black painting, anti rust oil, varnish, 3PE, hot-dip galvanized etc. Package 1.Big OD: in bulk 2.Small OD: packed by steel strips 3.Woven cloth with 7 slats 4.According to the requirements of customers Main market Middle East, Africa, Asia Some European country and America, Australia Capability 6000 tons/month. End BE/PE. Advantage 1.Big diameter and thick wall pipes. 2.Best price with good quality. 3.The partner you can trust.