Harry NWeblog: www.litrausa.com
Litra USA is an American company specialized in patio covers, sunrooms, canopies and retractable roof systems. After years of experience and researches Litra USA has created an exclusive covering system that we has been internationally patented under the name of "M.A.N.T.T." System. Our system is admired and used by many international architects in their planning for manufacturing moveable retractable patio covers which are windproof, waterproof, snowproof and option off soundproof, snow melting, anti-seismic, anti dew and humidity and insulated.