... welding 2Name:welding riser pipe 3Material:stainless steel 4Usage:gas/oil piping etc 5Brand:Shantin or OEM service Other name:riser pipe ... solution:Manufacturing processes:Cutting, Forming, Machining Assembling, Welding, Griding, leveling, Sand blasting, PaintingAvailable materials:Carbon ... machine, Impactor, Sclerometer, Laser telescope, Dial test indicatorQuality system:ISO 9001:2008Quality system of ...