Basic requirements for use of sendowtarpaulin Sendowtarpaulin is a relatively thick cotton fabric or hemp fabric. In the later period, it was named after being used as a sail. Most of them use plain weave, and very few use twill weave. The use of this product is also very common. , can be divided into two categories of thickness, coarse products can be used as cover for automobile transportation and open warehouses, and fine products can be used as fabrics for shoes, travel bags and backpacks after dyeing. good waterproof function.