Shenzhen master's degree recruitment

1. Remove the door leaf first, put the door frame at the door, and check whether it is straight with a level and a vertical line. If it is uneven, it should be leveled with sawdust.

2. Wood chips should be inserted into the gap between the door frame and the wall to ensure the stability of the door frame. During installation, cement mortar should be poured into the door frame. After the cement mortar is solidified and dried, the sawdust outside the door can be used. But within 24 hours, try to reduce the number and intensity of opening.

3. Usually, when making and processing copper doors, the surface will be painted, mainly for protection. The paint on the surface of the copper door has a good protective effect on the internal materials of the copper door. Therefore, the installation process of the copper door should be very cautious. Hard objects and sharp objects should not collide with the copper door, otherwise the surface paint will be scratched or even fall off, and the raw materials exposed for a long time will react with oxygen in the air and rust, which will affect the appearance.

4. Although copper itself has strong corrosion resistance and oxidation resistance, when installing copper doors, try not to let highly oxidizing and corrosive chemicals enter the construction site and avoid direct contact with copper doors. If chemicals accidentally touch the surface of this product, please rinse it with clear water immediately, and then dry it with a soft and clean rag. If necessary, cleaning agent can be sprayed on the surface of the copper door for cleaning and maintenance.

5. There is usually a layer of peritoneal paper on the surface of the new copper door to protect the product. There is no need to remove the peritoneal paper in a hurry during installation, so as not to damage the door. For example, when the wall is decorated, chemicals such as cement and paint falling from the painted wall are stained on the copper door, and it is easy to get black spots and rust after a long time. The lower frame of the copper door should also be protected, and a U-shaped groove can be made of wood.