... of our product.1.Basic Details Of Spiral Pipe Tianjin YouXinDa International Trading Co.,LtdProduct NameSPIRAL PIPESizeOD219 ... Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.Third party inspection:SGS, ... Control Of Spiral Pipe8.Application&Projects Of Spiral Pipe Applications of Spiral Pipes• Transportation of raw & ...