Q:What are the construction materials, components, fittings and equipment in construction?

: construction engineering materials, components, fittings, equipment, each refers to: 1, engineering materials: engineering materials mainly refers to raw materials. Such as: sand, stone, steel, etc., there is no processing materials. 2, structural parts: the main structure here is the main structure of the building, the two structure and other accessories. Most of the semi-finished products and the structure of part of the installation accessories, such as: beam beam, continuous beam, beam, beam, cantilever beam, curved beam; steel, timber, concrete beam.

Q:What are the mixing arms of the concrete mixer?

Mixing arm concrete mixer is a component of the mixing arm itself and divided into lateral mixing arm (positive and negative points), stirring arm (also have positive and negative points), stirring arm below is the bearing seat connected, connected with 4 sets of high strength bolts with stirring arm. The top is equipped with wear-resistant mixing blades, connecting with mixing blades, high-strength bolts 2 sets. In addition, some manufacturers have designed mixing side bonded shaft swivel, is installed in the interval between the stirring arm fixed and rotated in two ways.

Q:China mechanical net

From Chinese GM parts, general machinery, hardware, tools, instruments, electrical appliances and related equipment, textile equipment, chemical equipment, agriculture, food equipment, construction equipment, environmental protection equipment, mining equipment, metallurgical equipment, financial equipment, commercial vehicles and accessories, machinery processing equipment, machinery processing industry machinery enterprises and mechanical products

Q:Where are the mechanical pressurization air supply facilities set up?

The purpose of setting up a mechanical pressurization air supply smoke prevention system is to provide evacuation routes and shelters without smoke interference in the event of a fire in the building. Therefore, in the closed door, pressing position, and the fire floor must maintain a certain pressure difference, the position of the air pressure value is a relative positive pressure); at the same time, in the open part of the pressure when the door can have enough air velocity in the opening section, to effectively prevent the intrusion of flue gas, the safety of personnel ensure evacuation and refuge.

Q:What kind of electrical equipment do you have? What are the main components of each device?

Electrical equipment mainly refers to the transformer, reactor, capacitor, combination electric appliance, circuit breaker, transformer, lightning arrester, coupling capacitor, transmission line, power cable, grounding device, generator, condenser, motor, closed busbar, thyristor.

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

Hefei construction workers training _ limited energy or hazardous substances: conditions of actual technical and economic constraints, some risk sources can not be eradicated, then they should try to limit with energy or hazardous substances, reduce the risk of. Reduce the amount of energy or dangerous substance.

Q:What type of industry does the machinery and building accessories processing belong to?

Every industry has average tax rate, the contribution of each this argument does not exist, the industrial enterprise is nade VAT. The more value-added products you pay more.

Q:How are the machine parts stacked?

Classification ah! Put small pieces of different sizes and functions into boxes and attach labels; larger items can be placed outside in a certain order (for example, function, length, value, etc.)

Q:What are the sectors of machine building and parts processing?

3., machinery manufacturing is also a kind of industry, many industries have parts manufacturing, processing links. Therefore, the processing of parts does not belong to a particular industry.

Q:Definition of large mechanical equipment?

The hoisting machinery used in bridge construction can be divided into three categories: light and small lifting equipment, bridge type crane and boom type crane. Light and small lifting equipment, such as jacks, hoists, winches, etc.. Bridge type lifting machinery, such as beam cranes, Longmen cranes and so on. Boom type cranes, such as stationary slewing cranes, tower cranes, truck cranes, tires, crawler cranes, etc..