ceramic plate, Composite of PE and Ceramic plate protection area : 25cm x 30cm, protection level : NIJ III Composite of PE and Ceramic plate: The protection area is 25cm x 30cm.The level NIJ III standard ceramic plate: weight 2.4kg, 1.7cm thickness.The level NIJ IV standard ceramic plate: weight 3kg, 2.0cm thickness.The level NIJ IV standard ceramic plate: weight 2.6kg, 2.0cm thickness. ceramic ...