Performance standards and classification of security doors
The full name of the security door is called "anti-theft security door". It is equipped with anti-theft and security features. According to the "General Technical Conditions for Security Doors", qualified security doors can not be opened or opened by a portable power tool such as a chisel, a screwdriver, a crowbar or a hand drill within 15 minutes or a 615 mm2 on the door leaf. Open, or open a 38 mm square opening in a semicircle of 150 mm square. And the lock used on the security door must be a security door lock with anti-drilling function that has passed the test of the Ministry of Public Security. The security door can be made of different materials, but only the door that meets the standard test and receives the production permit for the security product can be called the security door.
According to the different structure, the anti-theft security door can be divided into three types: the anti-theft security door, the fence-type anti-theft security door and the fence-type folding door. However, the main use of the residential door as the household door is the flat-type anti-theft security door. The fence-type anti-theft door is mainly used in conjunction with the building intercom electronic control system products, and is used as a building intercom door for residential or residential walkways. Sliding doors are mainly used in small commercial shops.
Security door maintenance tips
Door maintenance: often wipe the dirt on the door of the security door with a clean soft cloth, pay attention to ensure that the security door is dry and avoid the sun and rain. The plastic coated steel products should protect the composite film from scratching; the sprayed steel products should avoid water or other hard-to-remove scales or corrosive substances to prolong the service life of the security door. It is recommended to cover the protective film on the finished plastic plate or cover the spray plate with a film.
How to choose a security door
A good "security door" is the protector of life and property. The security door has a flat open type, a push-pull type, a folding type, a fence type and the like, and the family mainly uses a flat type.
When purchasing, focus on the five factors of its anti-theft performance and quality:
1. The certificate of conformity must have the certificate of inspection issued by the statutory testing agency, and the certificate of production of the safety technology prevention product issued by the safety technical protection department of the provincial public security department (bureau).
2. Security level security door security is divided into A, B, C3 levels. The C-class anti-theft performance is the highest, the B-level is second, the A-class is the lowest, and the market is mostly A-class, which is generally applicable to ordinary families. Class A requirements: All steel, flat and fully enclosed, ordinary mechanical hand tools and portable power tools work together, the weakest link can resist the abnormal opening time ≥ 15 minutes, or should not be cut out Through the door's 615 square centimeter hole.
3. The material is currently more commonly used stainless steel, beautiful, durable, anti-corrosion. Mainly to see two points: 1 brand is now popular stainless steel security door material based on the brand 302, 304; 2 steel plate thickness door frame steel plate thickness is not less than 2cm, the front and rear steel plate thickness of the door leaf is generally between 0.8cm ~ 1cm, inside the door leaf Skeleton and stiffeners.
4. The security door with qualified locks generally adopts three-direction lock or five-position lock. Not only the lock is locked, but also the upper and lower rails can be inserted and locked, and the door is fixed. Most doors also have a rubber seal on the door frame that does not give a harsh metal impact when the door is closed.
5. Process quality Pay attention to whether there are defects such as open welding, unweld welding, and leakage welding. See if all the joints such as the door leaf and the door frame are dense, whether the gap is uniform, whether the opening is flexible, whether the paint plating is uniform, firm and smooth.
6. At the time of purchase, you should also pay attention to the “FAM†logo, enterprise name, and implementation standards of the “Anti-theft Security Doorâ€. The door that meets the standard can be safe and reliable.
Each piece in the Cookware Set with exceptional cooking performance
nonstick coating is metal utensil safe, easy to clean and provides superior food release
high temperature paint exterior
Suitable for use on most stove types, induction optional
Oven safe up to 400° F
Lids are made of see-through, break resistant tempered glass to allow safe monitoring of cooking progress without the need to take cover off cookware
Hand wash
Lifetime manufacturer's warranty
Cookware Set
Die-Cast Cookware Set,Die-Cast Aluminum Cookware Sets ,Granite Coating Die-Cast Cookware Set,Die-Cast Non-Stick Aluminium Cookware Set
OSFE INDUSTRIAL CO.,LTD , http://www.1758cookware.com