... of coating(e. G. Double coatings on both top and bottom sides, i. e. 2/2; Double coatings on top ... , Liu Zi bay windows, window frames, doors, garage doors, shutter doors, kiosks, shutters, guard partitions, door frames, light steel structure ... , corrugated roof, wall, rainwater drainage pipe, terrace, retailer booth, roller shutter door Inside: door, doorcase, light steel roof structure, folding screen ...