... Length:6m-18m. 3.API&ISO certification. API 5L spiral steel pipe/ERW pipe/welded tube.1.API 5L ... 030.0351741317.5-24 SAW/SSAW Spiral Welded Steel PipeQUALITY STANDARD1>SY/T 5040 Spiral submerged arc-welded steel pipe piles2 ... , Decorating, Residential, Ornamental Pipes 2>Agriculture Agricultural Equipment 3>Industry Machinery, Solar Stent, Offshore Oil Field, Mine Equipment, Electromechanical Hardware, ...