According to statistics, since the beginning of this year, the use of technology to unlock lock-in theft has increased significantly. Xingtai police reminded citizens to raise awareness of prevention and strengthen anti-theft measures. Three practical measures for family anti-theft: Lock the room door in time: increase the difficulty of prying the door, at least 15 minutes When people go out, they should develop the habit of anti-locking the door in time. If a thief opens the door violently with a crowbar, the door of the resident's room is not locked, and the ordinary anti-theft door can be opened in just a few minutes. However, after anti-locking, the general security door has 12 lock tongues in all directions, and the burglar uses a crowbar to open the door for at least 15 minutes. If the lock tongue of the anti-theft door in the household is in the shape of a hook, the crowbar will fail. In addition, if thieves use technology to unlock, the difficulty of unlocking will be greatly increased when encountering anti-locking doors. Replaced with super B-level lock cylinder: anti-technical opening time is greater than 240 minutes At present, there are two types of lock cylinders on the market, grade A and grade B. The anti-destructive opening of the A-level lock cylinder is more than 15 minutes, and the anti-technical opening is more than 1 minute. The anti-destructive opening of the B-level lock is more than 30 minutes, and the anti-technical opening is more than 5 minutes. The biggest feature of the ultra-B anti-theft door lock is that the anti-technical opening time is greater than 240 minutes. Because the cost of Class B locks is much higher than that of Class A locks, more than 70% of the locks currently on the market are Class A locks. A-level, B-level or super-B-level locks have a simple way to distinguish. Citizens can look at the keys of their own door locks. In general, A-level has only one row of teeth, B-level has two rows of teeth, and Super-B is 3 rows of lock teeth (some Super B-level lock keys only have 2 rows of lock teeth). At present, the price of a super-B lock core is about 100 yuan, plus an installation fee of 20 to 30 yuan. Install a low-cost alarm: when someone touches the door, it will make a 120-decibel sound "Generally speaking," technical "thieves are more timid, he may stop when the wind blows, the alarm will bring him psychological pressure." On Taobao, the price of a vibration alarm is more than 30 yuan. Without remote control, only 10 yuan. The operation of this kind of alarm is very simple. I took out a vibration alarm and attached it to the door, and then turned on the remote control switch. At this time, as long as someone touched the door, the alarm would emit a sound of 120 decibels for 20 seconds each time. There is also a telephone alarm, the price is slightly more expensive, the online sale price is about 150 yuan. This kind of alarm has two sensors, which are installed near the doors and windows. When there is motion, the sensor immediately "notifies" the phone, and the phone automatically dials to the owner's mobile phone. Cold Rolled Stainless Steel Sheets Cold Rolled Stainless Steel Sheets,Stainless Steel Sheet,Stainless Steel Coils,Astm Stainless Steel Sheet Shandong Xinsuju Steel Co.,Ltd. , https://www.sawlpipe.com
Stainless steel plate surface smooth, high plasticity, toughness and mechanical strength, acid, alkaline gas, solution and other media corrosion resistance. It is an alloy steel that does not rust easily, but not absolutely. Stainless steel plate refers to the corrosion resistance of weak medium such as atmosphere, steam and water steel plate, and acid resistant steel plate refers to the corrosion resistance of chemical etched medium such as acid, alkali, salt steel plate.
According to the structure is divided into austenitic stainless steel plate, martensitic stainless steel plate (including precipitation hardening stainless steel plate), ferritic stainless steel plate, and austenitic ferritic biphase stainless steel plate and so on four categories? According to the main chemical composition of the steel plate or some characteristic elements in the steel plate to be classified into chromium stainless steel plate, chromium nickel stainless steel plate, chromium nickel molybdenum stainless steel plate and low carbon stainless steel plate, high molybdenum stainless steel plate, high purity stainless steel plate. According to the performance characteristics and use of steel plate classification, is divided into nitric acid resistant stainless steel plate, sulfuric acid resistant stainless steel plate, pitting stainless steel plate, stress corrosion resistant stainless steel plate, high strength stainless steel plate. According to the functional characteristics of the steel plate, it is divided into low temperature stainless steel plate, no magnetic stainless steel plate, easy cutting stainless steel plate, super plastic stainless steel plate. Currently, the commonly used classification method is according to the structural characteristics of steel plate and steel plate chemical composition characteristics and the combination of the two methods. Generally divided into martensitic stainless steel plate, ferritic stainless steel plate, austenitic stainless steel plate, duplex stainless steel plate and precipitation hardening type stainless steel plate or divided into chromium stainless steel plate and nickel stainless steel plate two categories.
Typical uses: pulp and paper equipment heat exchanger, mechanical equipment, dyeing equipment, film washing equipment, pipelines, coastal area building external materials, etc.