... :12.7mm-2820mm,WT:0.5mm-25mm,Length:6m-18m. 3.API&ISO certification. API 5L spiral steel pipe/ERW ... steel pipe1)Standards: SY/T5037-2001 GB/T9711.1 API 5L ASTM DIN2)Material :PSL1 A \B \ X42 \ X46\ ... , Plaza Structure, Signage, Road Furniture, FencingLogistics Storage Supermarket Shelves, Containers, Transport Industries, Commercial ConstructionOther Sports Apparatus, Leisure Equipment, Furniture, ...