Not every product match to Western quality standard. You have to be careful when you purchase from China. There is some defraud and low quality.
For quality, you need quality control to project you. Before ship, check quality is a must. To replac any low quality before ship leave China.
Though some factory has ISO and CE or FDA certification, that doesn’t mean they can really match to high quality. Qulity check is the only way to protect yourself.


