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The reason why the steel tow chain can protect the cable is that its main body is composed of the chain wrench support and the spool pin, so that there is no relative movement between the cable or rubber tube and the tow chain, and no distortion. General steel tow chain materials are mainly aluminum alloy, carbon steel and stainless steel. Different from plastic tow chain, steel tow chain is more suitable for harsh working environment scenes, steel tow chain is better than plastic tow chain in terms of carrying cables, tubing, etc., wear resistance, metal tow chain is also relatively good plastic tow chain. The plastic drag chain has the advantages of simple structure, convenient installation and disassembly.

Fan is a common mechanical equipment, mainly used to produce air flow or increase the flow speed of air flow. By rotating the blade or impeller, it uses the kinetic energy conversion principle to convert mechanical energy into air flow energy, so as to realize the movement and transportation of air flow. Fan is widely used in industry, construction, agriculture, and other fields, has an important role.

The main principle of the heat sink is to effectively cool the hardware by transferring thermal energy from the hardware components that generate heat to the heat sink, which is then dissipated through the surface of the heat sink into the surrounding air.

1. Use warm and soft yellow lighting to create a comfortable reading or working atmosphere.

2. The design of this lamp is unique, the light body line is smooth, equipped with environmentally friendly and energy-saving LED bulbs. The translucent lampshade makes the light gentle and provides plenty of comfort for working and reading.

The principle of the brake valve is mainly concerned with the equipment in the automotive brake system to ensure that the car can brake smoothly. Brake valves are divided into gas brake valves and hydraulic brake valves, which play a crucial role in the braking process of automobiles. The working principle and application scenarios of the gas brake valve and the hydraulic brake valve are different, but the common goal is to achieve the smooth and safe braking of the car

Hydraulic pump is a device that converts mechanical energy into hydraulic energy,  which drives the executive elements in the hydraulic system by producing high-pressure liquid. The working principle of  the hydraulic pump is to use mechanical energy to drive the rotor of the pump,  so that the liquid body in the pump chamber generates pressure,  and then the liquid is transported to the hydraulic system through the pipeline,  so as to achieve the control of the actuator.

A hub is a cylindrical, barrel-shaped metal component centered on an axle that supports the tire's inner rim. Also called ring, steel ring, wheel, tire bell. Wheel hub according to the diameter, width, molding methods, materials of different kinds.

Hydraulic pump is a device that converts mechanical energy into hydraulic energy,  which drives the executive elements in the hydraulic system by producing high-pressure liquid. The working principle of  the hydraulic pump is to use mechanical energy to drive the rotor of the pump,  so that the liquid body in the pump chamber generates pressure,  and then the liquid is transported to the hydraulic system through the pipeline,  so as to achieve the control of the actuator.

A hub is a cylindrical, barrel-shaped metal component centered on an axle that supports the tire's inner rim. Also called ring, steel ring, wheel, tire bell. Wheel hub according to the diameter, width, molding methods, materials of different kinds.

1. The brake cylinder, also known as the master cylinder, is the operating rod of the brake pedal or brake device. It is mainly composed of gas column, piston, gasket, oil tank, oil flow device and so on.

2. The main parts of the cylinder are cylinder head, cylinder head, cylinder, piston, piston rod, guide sleeve, seal and pull rod.

1. The system constant pressure, such as the system water shortage, that is, when the pressure is reduced, the expansion tank will automatically water to the system, on the contrary, if the system pressure increases, the expansion tank can automatically eliminate excess water until the pressure is balanced.

2. Remove air from the system.

1. The air conditioning compressor plays the role of compressing the driving refrigerant in the air conditioning refrigerant circuit.

2. Air conditioning compressors are generally installed in outdoor units. The air conditioning compressor extracts the refrigerant from the low-pressure area, compresses it, and sends it to the high-pressure area for cooling and condensation. It dissipates heat into the air through the radiator. The refrigerant also changes from gaseous to liquid, and the pressure increases.

3. As the air conditioner compressor continues to work, it continuously absorbs heat from one end of the low-pressure area into the refrigerant and then sends it to the high-pressure area for dissipation into the air, thereby regulating the temperature.