... ordered Lloyd`s qualification welded especially thin-walled steel tubes Feature Dimension10 x 10mm - 600 x 600mmThickness0.6 ... , cutting, galvanizing2. Inspection: Hydraulic Testing, Eddy Current, Infrared Test3. All the production process are made under the ISO9001 ... welded pipe, seamless pipe, square steel tubes, rectangle steel tubes, spiral steel tubes and stainless steel piping. Meanwhile, it ...