Sprial steel pipe with good quality, variety application in fluid, drill,hydraulic, gas and oil, etc. Spiral steel pipeMaterial: Q195,Q235,Q345A,Q345B, etc.Application: fluid, drill, hydraulic, gas, oil and piling project.Standard: GB,JIS, DIN, EN, ASTM, AISI according to clients' requirements.MOQ: 20 ton or one 20 GP' container spiral steel pipe