10/2 * 10/2 flame retardant cotton canvas is the special fabrics designed for the workers of steel mills   , development for the white color, reduce the heat to the harm of human body, the fabric has thick make convection hot inside short time can't influence to the human body, after I special flame retardant treatment on metal splash reduce 90% damage, basic won't appear the clothes out of the hole,  washing 100 times are still good flame retardancy.