Lock maintenance
Key insertion and removal is not smooth? Try pouring graphite powder or pencil powder to make the key slide easily. Avoid using engine oil to avoid sticking to the spring. Remember to ask professionals for help when you encounter difficulties!
Elevation maintenance
Wipe the facade with a soft cloth to prevent corrosion and increase luster. You can also try a detergent mixed with soap and ammonia to make the security door look brand-new!
Conventional adjustment
Grease the hinge, lock tongue and other parts of the security door to ensure the flexible opening and closing of the door.
Feiyun anti-theft door
China famous brand, strong technology, sophisticated technology, products are exported to overseas.
Pan Pan anti-theft door
Evergreen trees in the market have a good reputation. Fire doors, steel wooden doors, etc. 10 products, more than 40 national patents, to meet your all-round needs.
Shengqun anti-theft door
Leading brand in the industry, with high popularity. Products are exported to the world, protecting the safety of millions of families.