What about design of pocket computer by Bright Alliance?

Manufacturing handheld computer, Bright Alliance Technology Limited has senior R&D team and veteran technicians as a strong support. As a company with social responsibility, Bright Alliance has always adhered to the enterprise spirit of 'concentration, dedication, and professionalism'. We pay great attention to the reputation, customers, and integrity during business development. We constantly innovate and pursue excellence, with the commitment of becoming a modern enterprise with a good reputation in the domestic market. Bright Alliance's rugged tablet can be used in a variety of industries. The rugged tablet series is widely praised by customers. The complete adoption of tough tablet structure for rugged tablet ensures the tough tablet. The product is sealed completely to be waterproof. Offering the professional service has attracted many customers for BATL. Its functions and properties are 100% inspected before shipment. For bulk purchase, please contact Bright Alliance for details.

Is the pre-filter filtering accuracy 90um good or 4um good? It's not that the higher the filtering accuracy, the better. it depends on what kind of requirements you are suitable. It is best to make it clear by yourself. don't choose casually. The smaller the number, the better, indicating that the higher the filtering accuracy, the more dense the filter screen. I would like to ask what equipment is specifically used for. generally, 40um is commonly used.

For help, after adding the front filter, the water heater will not burn The gas water heater is water-controlled and has a minimum water flow requirement. the requirement is not met. The water heater cannot release gas and open the ignition and cannot be used.It is recommended to check the water outlet of the hot faucet without hot water. if it is small, it may be a problem caused by insufficient water flow.Cold water is normal and hot water is small. consider why the original hot water is large and the hot water is small now. the reason is that the more scale deposits, the problem of blocking the pipeline.It is recommended to clean and remove scale immediately. you can buy a set of online shopping. the gas hot water is free to remove the detractor. use it to clean the inside of the water heater and hot water pipeline. The operation is simple and convenient. use it to clean regularly, this problem can be avoided again.