The cost price of a vacuum flask is not less than 10 yuan, so where do some products that sell for 10 yuan and still have profits in online stores come from? These products are mainly waste products from the quality inspection of vacuum flask manufacturers. Scrap products such as brushed gallbladder or pits in the inner pot. Then the manufacturer sells these products as waste to the recycling point. After the recycling point simply disposes of these cups, the vacuum cup products at a price of ten yuan will come out, and their cost is about five yuan.
