I don’t know if you have a very suitable desk when you study before. For students, a suitable desk is really a very necessary item, especially for children who are studying. So what is the standard for school desk and chair sets? Desk height standard Generally, the size of a single desk is about 60CM*110CM, […]
School dining tables and chairs also play an important role in the field of use and the scope of use. For example, wear resistance, antistatic performance and chemical resistance, etc. Among them, school dining tables and chairs with wear resistance are one of the products with a wide range of applications. So how do we […]
The slewing bearing is a large support bearing that can bear a comprehensive load, and can bear large axial and radial loads and tilting moments at the same time. This product is generally equipped with mounting holes, internal or external gears, lubrication holes or sealing devices, and has the characteristics of compact structure, light weight, […]
Worm gear slewing drive and spur gear slewing drive are both highly integrated modular rotary reducers. Users do not need to purchase individual parts one by one and then assemble them into products with worm gear slewing drive and spur gear slewing drive functions. Reduce unnecessary production preparation procedures, greatly improve production efficiency. In a […]
The double-row ball slewing bearing is called “mechanical joint” in the machinery industry. It is the primitive mechanical transmission necessary for relative rotation between two objects, and can bear axial force, radial force and overturning moment. Heat treatment of double-row ball slewing ring bearings and gears: The raceways of the double-row spherical slewing ring are […]
The micro sample nucleic acid extraction kit is a kit specially used to extract DNA and RNA from various micro and trace samples. This kit uses a centrifugal adsorption column that can specifically bind nucleic acids and a unique buffer system. After the sample is lysed, the DNA is specifically bound to the silica gel […]
Nucleic acid extraction system, also called nucleic acid purification instrument, is an instrument that uses matching nucleic acid extraction reagents to automatically complete sample nucleic acid extraction. An instrument that has only been applied and promoted in recent years. Nucleic acid extraction system application field In almost every laboratory, the separation and purification work related […]
The lining trolley is driven by the driving wheel to wind the crawler and cyclically rotate, and it is a mechanism that supports the body. It is composed of crawler walking device and suspension. The lining trolley walking system often adopts the overall trolley walking system and the balancing trolley traveling system. The walking device […]
Tunnel lining construction is the key construction content of tunnel engineering, which is related to construction quality and construction safety. So what are the causes of common problems in tunnel lining construction? What preventive measures are there to ensure the quality of tunnel lining construction? Remember the following 15 points to easily avoid common problems […]
There are many commonly used tunnel construction equipment, such as tunnel lining trolleys, excavators, loaders, roadheaders, dump trucks, bulldozers, graders, concrete mixers, asphalt mixing plants, grab machines, conveyors, fans, and dust removal In addition, more advanced shield machines may also appear in tunnel construction. However, construction equipment is only a part. These construction equipment need […]