STUDY OF TEMPERATURE EFFECT ON THE HARDNESS FOR EPOXY RESIN AND UNSATURATED POLYESTER. Baghdad Sci.J [Internet]. 2025 Jan. 14 [cited 2025 Jun. 19];4(4):583-8. Available from: https://bsj-ojs.uobaghdad.edu.iq/index.php/BSJ/article/view/840