... Fittings such as BW/ SW/ Screwed/ Forged & Compression Type Elbow, Tees, Cross, Reducers, Caps, Stub ends, ... high standard of metal. Main Products Type: Product nameSpiral submerged arc welding steel pipeStandardAPI 5L, GB/T9711,GradeQ235, ... diameter219-2420mmWall thickness5.00-30.00mmLength6-20mTechniqueDouble sides submerged arc welding steel pipeCertificateISO9001:2008, API SPEC 5LPackage detailsin ...