Spiral steel pipe API 1)OD: 21-1016mm 2)WT:3-20mm 3)Material: Q235 Spiral steel pipe API1)OD: 21-1016mm2)WT:3-20mm3)Material: Q2354)Length:5-12m5)payment terms: T/T, L/C6)Packing: painting, caps,in bundles.7)MQQ:5 ton8”TO40”SCH20,30,40,60,STD,XS,80SY/T 5037-2001Q235 5.8m,6m5-12m Spiral steel pipe API