Supply Of Supply Of Heavy Duty Natural Rubber Sheet Black Size 2000 X 1000 X 25mm Technical Requirement Tensile Strenght-min. 3.0 Mpa, Elongation At Break-min 250%, Specific Gravity-1.55gm/cm2 + 0.5, Hardness-70+ 5, Temp Range 0 To +60 Degree Celsius And Surface Composition-both Side Plain..