Q:The role of off-road truck differential lock?

Electronic differential lock Electronic differential lock compared with the above, did not change the structure and characteristics of the open differential, but the use of ABS or EBD system to perform unilateral brake sliding wheel action, limiting the speed of the two drive wheels Poor, to ensure that both drive wheels are powered. Advantages: good security, will not damage the vehicle. Disadvantages: the need for ABS and EBD system, costly; in the harsh off-road environment, the reliability of electronic products as mechanical products; single-wheel drive force, as the lock-type differential. This type of differential lock, due to cost reasons, generally only applies to high-end cars and high-end SUV.

Q:Currently on the market a lot of electronic locks, a button-type electronic locks, fingerprint lock, eye iris lock and so on. How are these locks easy and safe? Ads are too good to say, is that the case?

Lock is the need for regular lubrication maintenance, otherwise it will open difficult, rust, and even twist the key, or the internal lock block stuck open.

Q:I would like to open a lock shop, I do not know how to purchase, have this line of friends pointing it? Thank you. How about doing this, make money? Are there any prospects for development?

Investment, the benefits should be linked with the decoration shop, a simple lock monopoly, first of all to be installed, or you can not afford to sell.

Q:What is the tube well lock

Tube lock is also called simple door locks, universal door locks, pipe doors, electrical doors, line doors and other special locks.

Q:What is the difference between A and C? How to see what is your home lock?

In the anti-theft door market lock in general divided into three categories: A-level anti-theft lock (referred to as: A-level lock) B-level anti-theft lock (referred to as: B-level lock) Super B-level anti-theft lock (referred to as: super B-level lock)

Q:There is a bike lock can not turn after the direction of this lock is what the name of the lock

Called "head lock", also known as "leading lock", or called "big lock", "handlebar lock".

Q:Is the neutral bar locked?

To buy genuine, parallel what is the natural garbage, Taobao on those 20 to block the natural Needless to say I bought a neutral high manganese steel password lock, a good use, what a pliers pry open is a joke

Q:The key was stuck in the lock

Do not pull hard. Try to inject a little oil into the keyhole, no matter what the oil can, and then gently turn the key, and then pull out. The reason is: you use the key is not often used, the card is not easy to slide the card beans, the spring can not work, caught the key caused.

Q:To determine the broken core is not bad, how to judge

The first may be your lock is fixed too tight, causing the key to screw the head, resulting in rebound when the lock body can not drive the tongue rebound; The second possibility is the lock body problem, inside the mechanical transmission device has a problem, so that the tongue can not rebound. From the door to the material on the distinction, from good to bad followed by copper, stainless steel, zinc alloy, aluminum, iron. In the price is not necessarily copper than stainless steel, the material is solid and hollow. In the choice of time to carefully weigh the weight. The third is security. The lock core is the key to the key to a lock. Small is related to the loss of items, large is related to the safety of life. So when you choose the lock to be particularly important to this point.

Q:Lock safety level to H level what meaning

In the relevant industry standards, the level of protection for the protection level is explained by the general level of security (indicated by the letter A); the high level of protection (indicated by the letter B), and on the contrary in the national mandatory standard, , B to express. As for the H-class, should be a self-defined level of Taiwan, meaning high-level. You want to see his test report to know which level.