Composed primarily of tungsten carbide (WC) bits bound with a metal binder, such as cobalt, cemented carbide integrates the toughness of tungsten with the sturdiness of various other metals. The composition of cemented carbides can be tailored to fit particular applications, leading to the production of ranges like YG20, yg6, http://maskarad.bomba-piter.ru/user/dugoutarea3/