GS93032-6 CR300MB-GI50/50-U镀锌钢材 宝马标准 大厂原卷 ¥4.50 宝马标准 镀锌钢材GS93032-6 CR380MB-GI50/50-U模具制造 ¥4.50 GS93032-6 HR280MB-GI50/50-U镀锌板卷材料 宝马标准 定尺纵切 ¥4.50 GS93032-7 CR250Y440T-DP-GI50/50-U镀锌钢材 宝马标准 规格齐全 ¥4.50 GS93032-7 CR290Y490T-DP-GI50/50-U镀锌材料 宝马标准 盐雾试验 ¥4.50 GS93032-7 CR330Y590T-DP-GI50/50-U镀锌板卷材料 宝马标准 纵剪加工 ¥4.50