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Slewing-Bearings

Introduction to the heat treatment process of double row ball slewing bearing

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…

Instructions for Micro Sample Nucleic Acid Extraction Kit

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.…

Nucleic acid extraction system application field

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…

Introduction of Lining Trolley Traveling System

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…

Remember these 15 points to easily fix the tunnel lining disease

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…

What are the types of tunnel construction equipment?

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…

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