... .material:21,10,16yarn 3.usage:Leatherette, sugar refinery, rubber, paint, gas, oil, frozen 100% cotton filter cloth Function: 1.Large dust ... 1O*11 11*11 12*12 16*19 usage:Leatherette, sugar refinery, rubber, paint, gas, oil, frozen, cars, ponchos industryspecificationdensity specificationdensity10 ...