First of all, you need to know what is an anti-theft electronic password lock. The anti-theft electronic password lock is an electronic product that controls the circuit or the chip by inputting a password, thereby controlling the mechanical switch to close and completing the unlocking and locking tasks. There are many kinds of it. Now widely used is the chip-based anti-theft electronic password lock, which is realized by programming. Its performance and security have surpassed mechanical locks in a large program.
Second, we must pay attention to the following specific points:
First, choose the manufacturer
Including whether the manufacturer provides a formal inspection report, the manufacturers provide the quality of the move, the circuit board and the electromechanical solution and the regular service life of the manufacturer can provide the national authority department mainly the Ministry of Public Security's safety certificate, a sound quality management system, through International market standardization has its own patented technology. Only the products of the manufacturers that meet the above conditions can be used with confidence.
Second, the stability of the electronic door lock software system and the corresponding hardware environment
Most anti-theft electronic password lock manufacturers must emphasize their own hardware devices. As everyone knows, the software system of the anti-theft electronic password lock is very important, which is directly related to the security level of the anti-theft electronic password lock. The excellent anti-theft electronic password lock provides chips and embedded programs from the world's top suppliers. The software technology is mature and reliable.
Third, the future guarantee, whether there are professional after-sales personnel
The after-sales service personnel who are intimate and in place can not only make the users feel warm, but more importantly, a good after-sales service guarantee system, providing professional electronic password lock technology guarantee services, solving user problems at any time, guiding users to better products, More reasonable use ensures the user's comfort during use. Products without a perfect after-sales service system, even the best products, are not the best products.
Fourth, the installation service
Whether the anti-theft electronic password lock is correctly installed will directly affect the safety and service life of the product. Only the installation of professional technicians can guarantee the use value of the product is not damaged, and also ensure that the interests of users will not be damaged. If only the product is provided, but the professional installation service cannot be provided, or the user needs to solve the installation problem, such an electronic lock product is absolutely unselectable.
5. Maintenance after the warranty expires
Many manufacturers' service during the warranty period is often impeccable, but after the product warranty expires, the face is not recognized, the service is difficult to guarantee, and the maintenance charge is too high, which directly affects the user's maintenance cost, including the cost of key replacement. higher. Therefore, when buying and selling products, you can not only consider the product price, the service during the warranty period, but also pay attention to the service maintenance cost after the expiration of the warranty period. Otherwise, it may jump into the consumer's consumption trap.
Huitailong is about to launch an intelligent electronic password lock, so please pay attention to the consumers!
Steel reducers:
Pipe Steel reducers come into concentric reducers and eccentric reducers.They are made of carbon steel,alloy steel,stainless steel,low temperature steel or high performance steel,etc
Standards of Steel reducers:
ASME B16.9-2007
ASME B16.25-2007
ASME B16.5-2007
EN10253-1-1999 EN10253-2-2007 EN10253-3-2008 EN10253-4-2008
DIN2605-1-1992 DIN2605-2-1995
JIS B2311-2009 JIS B2312-2009 JIS B2313-2009
GB/T12459-2005 GB/T13401-2005 GB/T10752-2005
SH/T3408-1996 SH/T3409-1996
SY/T0609-2006 SY/T0518-2002 SY/T0510-1998
DL/T695-1999 GD2000 GD87-1101
HG/T21635-1987 HG/T21631-1990
Size of Steel reducers:
Seamless :1/2"~24" DN15~DN600
Welded: 4"~72" DN150~DN1800
Wall Thinkness
sch10, sch20, sch30, std, sch40, sch60, xs, sch80, sch100,
sch120, sch140, sch160, xxs, std,sch5s, sch20s, sch40s, sch80s
Maximum thickness: 120mm
Materials
Carbon steel: ASTM/ASME A234 WPB.WPC
Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911
Stanless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N
ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti
ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H
Low-temperature steel:ASTM/ASME A402 WPL 3-WPL 6
High performance: ASTM/ASME A860 WPHY 42-46-52-60-65-70
Steel Reducer,Eccentric Reducer,Concentric Reducer
Cangzhou Fixed Star Steel Co.,Ltd , http://www.fixedstarpipe.com