Technics:Bead removed & Bright annealed Test: Eddy current test & Hydro test , etc Stainless steel welded tube/pipe Stainless Steel Welded Tube/ ... , Bright annealed, Mechanical polishing, electrolytic polishing8. Test: Eddy current, Hydrostatic, Mechanical, Chemical composition analysis, Tensile test, Flaring test , Flattening test, etc.9. Packing: Plastic bag ...