Modern office chair MODEL-6

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CommodityMesh Office Chair
Item No.AOC-8567B
MaterialIron, Mesh, Fabric
GasliftClass A
Base Galvanized Iron Base
Armrest HeightAdjustable
Product Size50×46×113-123
Seat Height43-53
Seat Foam Thickness6
Armrest Width24
Armrest Height19-27
Carton Size(cm)66*32*641pcs/carton

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Q:What is the automatic telescopic function of an automatic umbrella?
When the intermediate slider is moved upwards, the switch is moved upward to prevent the spring 2 from compressing the spring at the lower dead point position and the elasticity does not reach the maximum value. Only when the switch force is slightly greater than the maximum value of spring 2 elasticity, the convex switch is retracted, and the middle slider begins to move up.B. when the middle slider moves down, the upper half of the convex switch is smaller, so that the spring 1 has sufficient elasticity to make the middle slide switch locked by the convex point switch. And 2, 3 is not enough to cause the umbrella middle slider has been declining.
Q:What are the main uses of a bolt tensioner?
He is elastic, in his range of elasticity can be stretched, and generally does not hurt the threaded bolt tensioner, high precision, high tensile bolt General requirements is the most appropriate, domestic stretcher good brand, I recommend Prima, quality customer service is good, and I hope to you help!
Q:Mechanical structure and principle of automatic focusing lens for camera
From the basic principle, AF can be divided into two categories: one is based on the camera and photographed location AF target distance between measurement and another is based on the focus screen clear focus imaging detection.
Q:What is a limiter?
Mainly for the protection of the safe operation of the pipeline, has the following functions: compensating absorption pipeline axial and transverse and angular deformation; absorption equipment vibration, reduce the vibration on the impact of pipeline equipment; deformation of the pipeline, absorb seismic subsidence. The utility model relates to a limit extension device, in order to improve the service life of the telescopic device, and a position limiting device is added at both ends of the expansion device. During stretching, the expander is damaged in order to avoid excessive stretching. A device for limiting tension is added at both ends of the expansion device. So it's called limit extension device. 1, the expansion device should check its type, specification and piping configuration before installation, must comply with the design requirements.
Q:What are tensile and shrink wrapping?
Stretching: one of the basic characteristics. The tensile feature is to draw the cross section of the drawn cross section in a specified tensile direction at a specified depth. Stretching is the most commonly used entity creation type that is suitable for creating rule entities and should be skilled.The main purpose: contraction of envelope: complex parts or components 1. can be used as a reference or package model to create a lightweight version; 2. can be used to create geometric model sharing relationship with suppliers and customers, and get rid of what you don't want to share details; file - save a copy - type contraction envelope; create components, in the form of a activation element inserts - shared data - shrinkwrap -- referring to the type for the components of a subset of context.
Q:How to achieve telescopic power arm
Pneumatic, cylinder. There is an electromagnetic valve, an air compressor.
Q:How do you pull the contracted muscles with a mechanical device?
A muscular spasm is a controlled contraction that causes the muscles to be tense and rigid, usually caused by lactic acid accumulation. 1) massage the muscles. 2) gently pull the muscles. Namely: 1 spasms can occur in any muscle, usually caused by unaccustomed activity, often occurring in the calf muscles of the gastrocnemius. When you massage, the injured must sit or lie down. 2 gently pull the muscles to counteract the spasms, and pull the foot to the shin in this case. Massaging and pulling muscles can increase the flow of blood in the muscle to take away and disperse the local lactate. Muscle spasm first aid Beijing Morning Post muscle spasm is commonly known as cramping. It is an involuntary tonic contraction produced by the muscles.
Q:Is the construction of the water supply steel pipe a telescopic device?
The trench excavation method should be carried out before the investigation and study, fully understand the channel section of the soil, underground water, underground structures, underground trench near building and construction environment, find the problem timely contact with the construction unit, research on treatment measures. In order to prevent over excavation, the groove should be laid out before excavation, and the excavated layer shall be excavated at intervals according to the opening slope, and the excavation depth shall be measured at any time.
Q:What kind of materials are used in the telescopic equipment of machinery industry?
The most common form of bond failure is shear. So the key requires enough strength and steel. No. 45 is the most commonly used steel.
Q:The working principle of the bolt tensioner
Bolt hydraulic stretcher or bolt tension, it uses hydraulic booster pump (ultra high pressure hydraulic pump) source, according to the tensile strength, yield tensile and elongation coefficient determined, using ultra high pressure pump the stretch, the bolt is applied force in the elastic deformation zone is stretched, the diameter of the bolt a slight deformation, so that the nut is easy to loose, and it can be used as a hydraulic interference connection device of applied axial force, top pressure installation. The biggest advantages of stretcher can make a plurality of bolts and fixed value fastening and disassembly, uniform force distribution, is a safe, efficient and fast tool is the best way to bolt fastening and disassembly of various specifications. Used in petrochemical, nuclear power, wind power, hydropower, thermal power, ships, railways, aerospace, mining, heavy machinery and other fields. According to different working conditions, application conditions and user requirements, it can be used as a special stretcher design.

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