Plastic trays can be washed and reused, and the USDA is promoting companies to use plastic trays to carry products. And now the U.S. Environmental Protection Agency is also aware that plastic trays should be the first

Connect the control circuit of the fan and pump, and pay attention to the correct direction of the fan and pump. Sewage treatment generally includes the following three treatment stages: The first treatment stage is to remove stones,

Process materials: Ultrasonic welding requires metal materials to have good flexibility (small mechanical loss during sound wave transmission), so the most commonly used materials are aluminum

Ultrasonic mold misunderstanding: You may often have the idea that the design and production of ultrasonic molds must be very simple. Don't be misled, when using a welding head that is not properly processed or not tuned