Composed mostly of tungsten carbide (WC) fragments bonded with a metal binder, such as cobalt, cemented carbide integrates the toughness of tungsten with the toughness of other metals. The structure of cemented carbides can be customized to fit details applications, leading to the production of varieties like YG20, yg6, and http://marinecleanupinitiativeinc.org/members/perchpie4/activity/30856/