
2, access control card readers are currently divided into imported and domestic, many people do not know how to choose, first to carry out a comparison, for imported card readers, the technology is mature, the design is not good, but the price is expensive, today I suggest that you buy domestic brands, choose those manufacturers with good reputation, and also know the real situation when purchasing, to avoid being fooled, to make a realistic and cautious choice.
3. When purchasing a domestic brand, you can't just judge the quality of the domestic access control reader from the appearance. Don't distinguish it from the shape and price, and learn more about the performance characteristics. It is recommended to choose those Ayong U2270B imported RF base station chips. The access control card reader will have a better effect.
4, the purchase of access control readers in line with international standards, the use of wg26 access control card reader effect is good, for the overall stability and later upgrades and maintenance have brought great convenience.
Self drilling Screw made of 410 stainless steel, high hardness (40 Rockwell C), steel process.
Drilling screw is also very strong hardness, compared to the ordinary screw up, not only to maintain the ability is good, the connection object effect is also very strong, for the performance of the screw, are generally does not need auxiliary processing, can be directly on the object directly drill a Kong Sue into objects, not just use rise very convenient, Also can greatly improve the efficiency of work. This kind of drilling screw can be said to be the first choice of workers in various fields.
So what is the use of drilling screws?
1 stainless steel plate, metal plate, galvanized steel plate, engineering installation.
2 metal curtain wall metal light compartment and other indoor and outdoor installation.
General Angle steel, channel steel, iron plate and other metal materials combined installation.
4, automobile, container, shipbuilding, refrigeration equipment and other assembly projects.
Self drilling screw,hex Self drilling screw,truss Self drilling screw,flat Self drilling screw,pan Self drilling screw
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