Features greenhouses: plastic film having insulation. After covering film, haze canopy will rise as the outside air temperature rises, as the outside temperature drops and drops. And there is a clear seasonal variation and larger temperature difference between day and night. The more low temperature of the greater temperature difference. Generally in the cold season warming up greenhouses Day 3-6 ℃, cloudy or nighttime warming capacity is only 1-2 ℃. The arrival of spring season shed and exposed to the temperature difference gradually increased greenhouse frame factory, warming up to 6-15 ℃. Greenhouse plastic film maintenance: greenhouses composition with bamboo poles, cement poles, light pipe or pipes and other materials to build the frame, made of columns, rod, greenhouse frame, rod and lever arch, greenhouse frame manufacturing, plastic film covering and become circular arch shed material. Film course, it is inevitable to break holes in a timely manner with an adhesive or adhesive tape up. Greenhouse plastic film covering due to the formation of relatively closed and exposed to different special microclimate. Quality Greenhouse skeleton, St. Xin Agriculture (certified), greenhouse frame by Anyang City of St. Xin agricultural technology services limited liability company. Anyang City of St. Xin agricultural technology services limited liability company (www.aysxny.com) in Henan, the other leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. St. Xin agricultural leadership with the staff warmly welcome all inquiries negotiations to create the holy Xin agriculture better future.