... Co., Ltdgreen house, garden tools,canopy, steel pipewe produce steel pipe,green house 1)WT: 0 ... ventilator is equipped inside the house to draw out hot air with forced ventilation,which also ... up to 80%;additional features include automatic irrigation system,insulation system,sun-shading ... cooling,turbine forced air cooling;Heating system:insulation,water-heating,fuel oil hot air heating;Micro-spray ...