... chemical composition of our product.1.Basic Details Of Spiral Pipe Tianjin YouXinDa International Trading Co.,LtdProduct NameSPIRAL PIPESizeOD219---2020mmWT6 -- 30mmLength4 ... Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.Third party inspection:SGS, BV, Lloyds etc.Mill Test CertificateEN 10204 ...