3、看报价。材质不一样,外观处理不一样活动策划公司,铝材的壁厚不一样,报价就不一样北京人事考试中心,差很远。假如报价低的,多半是次料回收,壁厚太薄,同样1米,人家重4KG的,它才两公斤多,人家壁厚是5MM的,它才1.2MM。
3. Look at the quotation. The material is different, the surface treatment is not the same, the wall thickness of aluminum is different, the quotation is not the same, far from it. If the price is low, most of the material is recycled, the wall thickness is too thin, the same 1 meters, and the 4KG is only two kilograms. The wall thickness is 5MM, and it is only 1.2MM.