We provide good quality products and competitive price Sprial welded steel pipe:OD: 10-1220mmWall thickness: 6-25mmStandards: API SPEC 5L, ASTM, BS, GB/T9711.1-1997Material: Q195-Q345Length: Normal size 6-12meterPacking: Mark, painted, beveled and protected by plastic on both endsWelcome to inquiry.