Greenhouse skeleton following advantages: 1, small investment without having to build factories, small footprint, two-phase, three-phase power can be, 3-5 people can produce. 2, specifications can produce different specifications of products, cylindrical, oval, distance, shaped, solid type, hollow tubes. 3, see Lee quickly without high investment risk. Market demand is huge, bigger profits. 4, low cost 4cm diameter rod cost only 1.4 yuan / m. 5, easy to operate and convenient transportation and installation vary in size, flexible operation, transportation, installation is relatively simple. 6, easy to spread material easy to purchase raw material widely used throughout the country can buy.