Sprue Marks
Marks, usually raised, left on the surface of a rubber part, after removal of the sprue (pouring nozzle) or cured compound in the gate through which the compound is injected or transfer molded
Marks, usually raised, left on the surface of a rubber part, after removal of the sprue (pouring nozzle) or cured compound in the gate through which the compound is injected or transfer molded