Group items tagged 
International air transportation characteristics (1) International freight transportation involves international relations and is a foreign policy with a strong policy nature. Internatio...
Many friends think that the dust-free cloth is a kind of cloth. In fact, the dust-free cloth is divided into many types. There are functional dust-free cloths, wipe-free dust-free cloths, dust-free...
Elevator motors usually use permanent magnet synchronous motors, mainly because the permanent magnet synchronous motors are easy to be made into low-speed, high-power advantages. It has a compact s...
The mechanical seal is composed of at least a pair of end faces perpendicular to the axis of rotation under the cooperation of the fluid pressure and the elastic force of the compensation mechanism...
Many purchases are not new to clean cloth, but they do not know how to choose a suitable clean cloth when choosing clean cloth. The hidden relationship among them is not something that can be under...
With the rapid development of the information age, favorable policies such as broadband China, broadband speed-up, and fiber-to-the-home are driving the development of the entire optical communicat...
Features of Fully Automatic Glue Box MachineFull-automatic glue box machine uses brand-name electrical appliances and accessories to make the machine fall control, fast speed, no sticky appearance ...
Water parks will be packed as mercury levels rise across the China. Those of us who want to cool down can look forward to queuing up in the country's best water parks, expensive parking lots and cr...
The application fields of optical fiber fusion splicers are becoming more and more extensive. Most of the operators of optical fiber fusion splicers have not undergone formal operation training. It...
Nowadays, with the continuous increase of production demand, people's requirements for the outer packaging of many products are gradually increasing, and there are strong requirements in terms of c...
PU leather and microfiber leather are both artificial leather. PVC is the first generation of artificial leather, PU is the second generation, and superfiber is the third generation. It is the clos...
The hygienic performance of PVC artificial leather is simply the air permeability and water vapor permeability of PVC artificial leather. Due to the small artificial fiber bundles, they are quite s...
Are you looking forward to buying a lady handbag but not sure how to get it? First of all, it is important to know that handbags usually have a wide variety of styles and designs. This alone makes ...
The mechanical seal is a sealing device composed of two sealing elements (static ring and moving ring) that are perpendicular to the shaft and have bright and flat appearances that are attached to ...
The following is a display shrink film mainly based on olefin structure. The simple fact is "At present, there is no industrial technology that can produce biodegradable shrink films in the stricte...
Auto Led Headlight refers to a car light using LED (light emitting diode) as the light source. Because LEDs have the characteristics of high brightness, rich colors, low power consumption and long ...
Dust-free wiping cotton swab tip, the cotton swab tip is extremely soft and always has the characteristics of micro-porous, can remove dirt and dust that are invisible to the naked eye, the cotton ...
Compared with other types of motors, the biggest advantage of permanent magnet synchronous motors is higher power density and torque density. Delta said frankly, compared with other types of motors...
The mechanical seal is a combined mechanism composed of a series of simple design elements. The sealing function is completed by two main sealing rings with planes to prevent leakage. One of the se...
With the increasing awareness of environmental protection, we need to charge many places in our lives: mobile phones need to be charged, cars need to be charged. If the method of use is not correct...
