短语词组短语clad base material 履金属箔基材clad metal material 复层材料metal -clad bade material 覆金属箔基材cermet clad material 金属陶瓷覆层材料copper -clad aluminium composite material 铜包铝复合材料flexible copper clad material 挠性覆铜箔材料 返回 clad material