Study Tensile Strength and Wear Rate for Unsaturated Polyester Resin and Nitrile butadiene Rubber Polymer Blend. alkej [Internet]. 2015 Mar. 31 [cited 2024 Nov. 22];11(2):45-50. Available from: https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/223