Zhangjiagang StanGroup Machinery Co.,Ltd is one company who was professional on machinery in Metal Duct/Tube industry and Sheet Metal Forming industry,we have been committed to research, develop, manufacture and innovate in such Industry more than ten years. Our product mainly include Automatic Line for rectangular duct, spiral tube forming machine, Flat oval Duct machine, Plasma cutting machine, TDF/TDC Flange forming machine and such correlative machine. Production be produced after StanGroups machine was widely used in HVAC Heating,Ventilation,Refrigation,Air-condition, Building, coal mine, Dust Collector, Dust-free clean Room, Textile AC, Wooden working industry such environmental protection industry. We just conform to a global trend of environmental protection and development for whole world to do an own meager strength.