1.professional , excellent quality with competitive price 2.Shade rate of greenhouse: 50%, 65%, 75% 3.corronsion of prevention Evaporative cooling pads (evaporative pads) are products developed for horticulturaland agricultural cooling applications. Evaporative pads are made of speciallyformulated cellulose paper, impregnated with insoluble anti-rot salts, stiffeningsaturated and wetting agents. ...