... through bending,forming, automatic welding, hot dip galvanization and powder coating. We owned advanced production-line, it included Flatting machine, ... machine, submerged arc welding machine and powder coating line, and our workmanship and quality control was achieved ... glue ,engrave ,emboss as per customer requirementSurface treatmentHot dip galvanized Following ASTM A 123, color polyester power or ...