تسمه نقاله nilos در مصر . تسمه نوار نقالهblogfa. A conveyor belt is the carrying medium of a belt conveyor syst em (often shortened to belt conveyor). A belt conveyor system is one of many types of conveyor belt conveyor system consists of two or more pulleys (sometimes referred to as drums) with an endless loop of carrying medium—the conveyor belt—that ...