In order to improve the mechanical properties of the metal matrix composite. the copper-graphene composites were prepared by FSP (friction stir processing) method. The samples were analyzed through the metal microstructure observation test and mechanical test. the effects of agitation speed and the amount of graphite on the microstructure and tensile strength of the composites were in... https://poolsproductscanadas.shop/product-category/hayward-main-drain-parts/