The design is simple,fashionable and novel,strong sense of science and technology,light and practical,green,environmental protection,energy saving ,pollution-free and radiation free.The product has long service life,low installation and maintenance cost and convenient maintenan
Process:Raw material test → Cutting →Molding or bending →Welding (longitudinal )→Dimension verify →Flange welding →Hole drilling →Calibration → Galvanization or powder coating ,painting →Recalibration →Thread →Packages