1. Steel plate for pressure vessel: It is indicated by the uppercase R at the end of the grade. The grade of the yield point can also be expressed by the carbon content or the alloying element. Such as: Q345R, Q345 is the yield point. For example, 20R, 16MnR, 15MnVR, 15MnVNR, 8MnMoNbR, MnNiMoNbR, 15CrMoR, etc. are all represented by carbon content or alloy-containing elements. 2. Steel plate for welding gas cylinder: It is indicated by the capital HP at the end of the brand. Its grade can be expressed by the yield point, such as: Q295HP, Q345HP; it can also be expressed by alloying elements such as: 16MnREHP. 3. Steel plate for boiler: It is indicated by a lowercase g at the end of the brand. The grade can be expressed by the yield point, such as: Q390g; it can also be expressed by carbon content or alloying elements, such as 20g, 22Mng, 15CrMog, 16Mng, 19Mng, 13MnNiCrMoNbg, 12Cr1MoVg, and the like. 4, steel plate for bridge: use lowercase q at the end of the brand, such as Q420q, 16Mnq, 14MnNbq and so on. 5. Steel plates for automobile girders: indicated by capital L at the end of the brand, such as 09MnREL, 06TiL, 08TiL, 10TiL, 09SiVL, 16MnL, 16MnREL, etc. Electric Rechargeable Mosquito Killer,Mosquito Swatter Racket,Portable Mosquito Killer Lamp Guangdong Dp Co., Ltd. , https://www.dp-light.com
Special structural steel plate
Electric mosquito swatter is a kind of small household appliance products, mainly used to kill mosquitoes, flies, moths and other insects. It through the electronic high voltage technology, the use of 1850V high voltage to effectively destroy these pests, has the advantages of practical, convenient, no chemical pollution, safety and health, so it is widely welcomed, become the summer best-selling small household appliances products. The electric mosquito bat is usually composed of three layers of metal mesh, the outer metal mesh and the middle layer are not directly connected, and maintain a certain distance. When the switch is pressed, the direct current in the battery passes through the oscillation circuit and the boost circuit, eventually reaching a high voltage above 2000 volts. This design allows the mosquito to be waved through the electrostatic field and electrical grid discharge to destroy the insect, without causing harm to the human body.
The main advantages of electric mosquito swatting include:
Efficient pest control: can kill a variety of insects in a short time, including mosquitoes, flies and moths.
Safety and health: the use of high voltage electricity instead of chemical agents, to avoid chemical pollution, more environmental protection and safety.
Portable and convenient: compact size, easy to carry and use, suitable for home and outdoor use.
No chemical pollution: will not produce harmful chemicals, more friendly to the environment and human body.
The following points should be noted when using an electric mosquito swatter:
Avoid using in humid environment, so as not to affect its high pressure effect.
Keep the electric mosquito bat dry to avoid short circuit or damage caused by moisture.
Avoid using in flammable and explosive environments to prevent accidents.
Children should use under adult supervision to prevent accidental handling or risk of electric shock.
In short, with its high efficiency, safety and environmental protection characteristics, the electric mosquito has become an ideal choice for summer pest control.