发布时间:2025-02-08 00:03:31
扁钢的尺寸规格标注由厚X宽X长(单位:毫米),例如:3*40*6000即为厚度3mm,宽度6mm,长度6米的扁钢
预算是780元做完了告诉我要1000多我该给他加钱吗沈阳林凤装饰
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