| 摘要 |
PURPOSE: A cover with functions of waterproof and heat insulation is provided, which is made by waterproofing non-woven fabric with a waterproof agent and can be used for a long time with low cost. CONSTITUTION: A waterproof cover is produced by spraying a waterproof agent and applying to one side of the non-woven fabric used for a vinyl house by using a compressor, grinding yellow soils and spreading the ground soil to the applied part of the cover to prevent the black coating of the waterproof agent from being come off. |
