Mobile phones have become a must-have item in modern people's daily life. The most worrying thing when using a mobile phone is the power problem, so the pursuit of larger battery capacity and faster c

Formaldehyde - a chemical raw material that modern people are afraid of but cannot live without. They are afraid of it because it is extremely harmful to the human body; they cannot live without it be

The new semester has begun, and parents have started buying stationery for their children again. Walking into a stationery store, a variety of stationery with exquisite packaging is constantly emergin

Medical devices are an important component of the medical industry, and the safety and effectiveness of their products are closely related to our life and health. Therefore, countries around the world

Respiratory protective equipment belongs to PPE personal protective equipment, and the CE certification of such products must comply with the requirements of the EU Personal Protective Equipment PPE R

Helmets and safety helmets belong to PPE personal protective equipment, and the CE certification of such products must comply with the requirements of the EU Personal Protective Equipment PPE Regulati