3 1 2 1 导体,铜排(IBC);铝排(IBA) 2 高性能绝缘材料聚酯薄膜 3 外壳铝镁合金;钢;复合型 1 Conductor, copper bar (IBC); aluminum bar (IBA) 2 High performance insulation material polyester film 3 Magnesium alloy shell; steel; compound 13 密集型母线槽