Склад цветной стали Арочная кровля

1. It has large span (6-42M for your choice), no beam and purlin, no support, which creates vast and excellent internal spacing. 2. It's economical and only costs a little; the roof covering integrating heat preservation, heat insulation, ventilation and lighting together to form a uniform system. 3. The construction period is short, and one hectare of roof covering can be complete within about 20 days. 4. It's light in weight, and has long service life; colored steel panel is light in deadweight, so it's applicable for adding stories to buildings and reform of old houses; it's service life is 60 years, and guarantee period is 10 years. 5. It has attractive appearance and bright color; twelve kinds of colors are for your arbitrary choice; it has unique style, novel and rhythmic, and has permanent waterproof effect.