Shanghai Changlei industrial Co., LTD is the economic group entity specialized in designing, producing, processing and operation. we have more than 10 of various sheet making equipments, the colored sandwich sheet production lines, C-steel production equipments and so on. our major products are the colored steel tile, colored galvanized steel sheet,the colored sandwich steel sheet, rock wool sandwich sheet,PU sandwich sheet, paper honeycombs sandwich sheet, EPS sandwich sheet, extruded sandwich sheet, corrugated sandwich sheet, the colored galvanized steel tile, the colored glazed steel roofing tile , C/Z steel, colored steel prefab, sunshine sheet prefab and etc. Our products are widely used in large industrial plants, warehouse, gymnasium, supermarket, hospital, refrigerating warehouse, prefab, making layer in the construction, purified workshop and the location required for thermal insulation.