The natural rubber is from the natural rubber tree with middling hardness and high tensile strength, high elongation, good abrasion resistance, elasticity, safety and non toxicity without smell. The pure natural rubber sheet is also named gum rubber sheet or para rubber sheet.Working under the higher pressure, wearing resistant, food grade lining status at the temperature of -35°C - +85°C in air or water. Apply to punch all kinds of seals, gaskets and others applications with its good function, for example of truck lining, drinking water lining or rubber membrane special for PVC vacuum laminating press.