Paper corner guards (also known as cardboard corner guards or carton corners) are most widely used in the following areas:

1. Logistics and packaging industry: Paper corner protectors are widely used in packaging, transportation and storage industries. They are used to reinforce the corners of cartons to prevent damage during shipping and stacking. This helps protect packaged goods from damage and reduces cargo loss.

2. Cargo transportation: During the transportation of goods, paper corner protectors can be used to stabilize and reinforce the packaging of goods to prevent the goods from moving and being damaged during transportation. This is particularly useful when goods are being loaded onto trucks, containers or other shipping equipment.

3. Manufacturing: The manufacturing industry often uses paper corner guards to protect products during the manufacturing process. These corner guards can be attached to products to protect them from damage during manufacturing and assembly.

4. Retail and supermarkets: In the retail industry, paper corner protectors are often used to package fragile goods such as appliances, electronic equipment, and furniture. They can also be used for merchandise displays and displays, providing extra support and protection.

5. Building Industry: In the field of building and construction, paper corner guards are used to protect building materials such as glass, tiles, and wood. They can also be used for the reinforcement of temporary structures.

Overall, paper corner guards are widely used in a variety of fields for packaging and protection needs, as they provide an affordable and effective way to prevent damage to goods and increase the stability and durability of packaging sex.