30’x40′ Large Heavy Duty Poly Tarps 5Mil-18Mil Waterproof Canopy Cover Tarpaulin. Durable and heavy duty tarp is made from high-density, tightly woven. High and low temperature resistance, anti-aging and corrosion resistance. Double coated, waterproof on both sides. High-temperature heat-sealing hem, heat-sealing stitching. No leakage, no deformation, no cracking. Four sides and four corners are designed […]