(2) unfold the sanitary towel and face the sun. If you can see through it, it is also fake;
(3) Observe its surface with a magnifying glass of 5 times to see if the lines are clear and clean;
(4) By shaking the sanitary towel to make it make a sound to distinguish the authenticity, the genuine product has the characteristics of being stiff, folding-resistant and not easy to tear.
Extended data:
Purchase suggestion
1, don't buy anything too cheap.
2. Don't buy it in the canteen wholesale market.
Don't buy those with poor packaging quality.
4. There is generally no counterfeiting in regular supermarkets.
5. Report the suspected problem at telephone number 123 15, and keep the shopping voucher and the problematic goods.
References:
Baidu Encyclopedia-Seven Dimensions