Q:Mechanical bearings, all types? Roughly

The basic structure and NU type cylindrical roller bearing inner ring bearing the same, but because of the needle, the volume can be reduced, and can bear large radial load to the bearing without inner ring shaft mounting surface with suitable precision and hardness is used as a raceway.

Q:China mechanical net

There are mechanical product development and design, mechanical equipment transformation, mechanical equipment maintenance, data inquiries, standard inquiries, mechanical professional translation, mechanical CAD and other mechanical and technical services.

Q:What are the world famous mechanical equipment exhibition?

1, the German BMW Exhibition (BAUMA) sponsored by: Messe M nchen GmbH, held every three years, has held 30 sessions, the thirty-first will be in April 2016 11-17 in the German city of Munich exhibition centre. The German international engineering machinery, building materials machinery, mining machinery, construction vehicles and Equipment Expo is the world's largest and most influential international engineering machinery, building materials machinery, mining machinery industry exhibition, every three years regularly held in Munich in germany. The fair combines science and technology, trade, information and technical cooperation

Q:Building materials, equipment, components and fittings products must have "three certificates" is what cards?

Product qualification certificate means the qualified certificate, qualified label or qualified seal issued by the manufacturer to indicate the quality of the products manufactured by the factory and qualified on the package of the product or product. This is the producer's guarantee of the quality of its products, and also the obligation of a product to be stipulated by the law.

Q:What is the use of spare parts prices in Chinese market by foreign companies?

But there is always somebody to ask, just like a college paper, where everyone can read or keep secrets, but collecting them and sending them to foreigners is a sign of treason

Q:What measures can effectively reduce the construction accident rate?

Hefei construction workers training _ eliminate dangerous source: eliminate the risk source of the system can fundamentally prevent accidents. But an important point of system safety is that it is impossible to completely eliminate all sources of danger and that people can only selectively eliminate several specific sources of danger. Generally speaking, when the risk of a dangerous source is higher, we should first consider whether we can take measures to eliminate it. A dangerous source can be completely eliminated by selecting the proper production process, technology, equipment, reasonable design, structural form or suitable raw material. For example: instead of the power system with pneumatic or hydraulic system, to prevent the occurrence of electrical accidents; instead of compressed air system for hydraulic system, to avoid the pressure vessel, pipeline rupture caused by shock wave; with incombustible materials instead of combustible materials, to prevent the occurrence of fire. It should be noted that sometimes measures are taken to eliminate certain sources of danger, but new sources of danger may be brought about. For example, an electric pneumatic system instead of a power system can prevent electrical accidents, but a physical explosion accident may occur in the compressed air system.

Q:Changsha Sanlian Building Machinery Fittings Factory

The company in Changsha Hongdun business online can not find, provided by his address: two Changsha section of Xingsha Economic Development Zone Yuan Ming Road, I checked 114 specially call 12580 to booking the hotel near the road, not the road. Definitely a liar.

Q:Construction machinery production need to deal with what documents?

At all levels of production safety responsibility system, mainly refers to: the legal representative of the safe production responsibility system; the responsible person in charge of safety production safety responsibility system; the technical director (Chief Engineer) production safety responsibility system; the safety department (Department) Changan production responsibility system; responsibility for production safety, the project manager; specifically (and) post safety responsibility system for production safety; construction technician (technician), safety production responsibility system; 8 class (Group) Changan production responsibility system; workers, production safety responsibility system. Departments responsible for production safety system, mainly in accordance with the functions of enterprises set up departments, the corresponding formulation of the responsibility system for safety in production.

Q:The building electrical iron pipe and the pipe line fixing member connected to what is called, what is called the iron pipe and the 86 fixed part of tin

The distribution of the construction site, construction machinery and electric hand-held electric tools, lighting, construction site construction site: risk factors and lightning protection, the construction site of common electrical tools and instruments, the construction site of the electricity management, common electrical fault, accidents and accident cases.

Q:What are the safety protection equipment, machinery and equipment, construction machinery and accessories for construction enterprises?

Different types of work, security appliances are not the same. For buildings, the main safety helmets, safety nets, safety belts (San Bao), etc., for electrical operators, mainly insulated shoes, insulating gloves, insulation rod, insulation table, etc.