Knife scraping tarpaulin performance index and waterproof tarpaulin folding method

Knife scraping tarpaulin is a chemical synthetic material, the thickness is thicker than ordinary tarpaulin. The front of the tarpaulin is flexible and smooth, the back is rough, and the granularity is thick and uneven. What are the performance indicators of such a knife scraping tarpaulin? What time is it? 1. Tensile strength index: warp strength≥2100N/5CM Weft Strength≥2. No water leakage, water pressure resistance value≥2000MM water column 3. It can withstand low temperature, and the cold resistance temperature is -20℃ 4. It can prevent mildew, and the anti-mildew test is the first class. The correct folding method of the tarpaulin: 1. The front of the tarpaulin is spread out flatly, leaving two side ropes, and folding the two sides of the length direction to the longitudinal center line of the tarpaulin. 2. Divide the folded sides into three equal parts, and fold them twice toward the center line. 3. Fold both sides of the waterproof tarpaulin in the width direction to the horizontal center line of the tarpaulin, and then fold them in half to the middle three times in a row, and then jump firmly. The folded size is about 1000mmx600mmx300mm. 4. Bundle with reserved rope, tie crosses on both sides, tighten and tie tightly, and plug the rope end well, so that it should not loosen and the rope buckle will fall off, and must not be dragged.
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