Hangzhou xinfer Machinery Co. ,Ltd is a professional manufacturer specializing in the developing and exporting of roll forming machine & steel structure. Manufacturer of steel roll forming machinery, folding machine, shearing machine and roofing tile sheet, corrugated steel sheet, decking sheet, sandwich panels, purlins ,steel coils, steel structure house, portable house, steel structure suilding etc. Our products are exported to are well sold in America, Europe, Australia, Africa, Middle East and Southeast Asia ect.