First of all, in terms of steel selection, we generally choose hot-dip galvanized steel pipes. Some companies will choose cold galvanizing, that is, galvanized strip materials in order to pursue profits. This material greatly shortens the service life of the greenhouse. Generally, we will use steel with national standard thickness, such as hot-dip galvanized material with 2.0 thickness, and some companies will use material with 1.8 thickness.

In the glass greenhouse, the processing technology of the main truss is the most available price. Generally, the overall hot dip galvanizing after the black pipe welding is adopted. The advantage of this is to ensure that there is enough zinc layer at the welding point to prevent rust. Many greenhouse companies will use hot-dip galvanized pipe to directly weld and spray silver powder. Although the price is low, the service life will be shortened, which will seriously affect the safety of greenhouse structure. In snowy areas, the minimum thickness of the sink should be 2.0. Even the full glass greenhouse should use gutters with a thickness of 2.5 to 3.0. Some companies will use gutters with a thickness of 1.5 in order to save money. The snow load resistance of the top is greatly reduced. 4mm scattering coated glass is generally used. Some greenhouse companies will use insulating glass with poor quality, which will also affect the cost.

In the PC solar panel greenhouse, the solar panel we use is a brand-new solar panel made of imported Bayer materials with a UV anti drip warranty of ten years. Many companies will use the solar panel made of recycled materials, which not only weighs less than grams, but often turns yellow and breaks in three to five years.

The common problem of multi span film greenhouse is the material selection of film groove and spring. Our films mostly use 12 wire and 15 wire Po films. This film is not only thick and tough, but also has long service life, high light transmittance and anti drip. Some greenhouse companies will use ordinary 8-wire films. Card slot we mostly use high zinc layer card slot or aluminized zinc card slot. In order to save cost, some companies will use ordinary galvanized plate card slot, and the thickness can not meet the use standard.

In addition, standard greenhouses are generally bolted, and welding points are not allowed. In order to save costs, some companies will weld the waste materials for use. In addition, the material and thickness of some connecting accessories, the material of shading net and thermal insulation quilt and intelligent system will affect the price of greenhouses. Greenhouses with seemingly the same structure are greatly different.