Polycarbonate greenhouse are weighted light but firm by using surface coating processed aluminium alloy sections as its structure. Covering plates is made up of high-quality multi-wall plates which are externally easy-toclean and internally anti-drippage with high transmittance,light weight, firmness, good thermal insulation and energy saver. Besides its easy installation and convenient operation, the products are well received by markets for it can be tailor made.