YX130-300-600 彩钢板YX15-225-900 YXB65-185-555 YXB40-185-740 压型板YXB65-170-510
YXB38-380-760彩钢板 YXB38-152-914彩钢板压型板 压型板楼承板YXB51-305-915 YXB76-305-915
YXB 75-200-600 开口楼承板YXB75-230-690 YXB48-200-600 YXB65-254-762 YXB65-240-720 YXB65-220-660 YXB51-180-720 YXB51-250-750 铝镁锰屋面板YX65-430 铝镁锰金属屋面板YX65-400
YXB51-226-678 缩口楼承板YXB51-190-760 YXB51-342-1025YXB76-344-688 桁架楼承板生产厂家