Komatsu PC200-8 Hydraulic Pump (小松PC200-8液压泵, Гидравлический насос Komatsu PC200-8): This is the heart of the excavator's hydraulic system. Installed on the Komatsu PC200-8 excavator, it converts mechanical power from the engine into hydraulic energy, pressurizing fluid to power the boom, arm, bucket, and tracks.

Scania DC13 Engine Turbocharger (斯堪尼亚DC13发动机增压器, Турбокомпрессор двигателя Scania DC13): Mounted on the exhaust manifold of the Scania DC13 engine in Scania trucks, this device uses exhaust gas energy to spin a turbine, which in turn drives a compressor. This forces more compressed air into the engine's cylinders, significantly boosting power and efficiency.

John Deere 8R Tractor Fuel Injector (约翰迪尔8R拖拉机喷油器, Топливная форсунка трактора John Deere 8R): A critical component located in the cylinder head of the engine on a John Deere 8R series tractor. It is an electronically controlled valve that sprays a fine mist of diesel fuel directly into the combustion chamber at a precise moment for optimal combustion.

Mercedes-Benz Actros Truck Air Compressor (梅赛德斯-奔驰Actros卡车空气压缩机, Воздушный компрессор для грузовика Mercedes-Benz Actros): This is an engine-driven pump on a Mercedes-Benz Actros heavy truck. Its primary function is to build up and maintain air pressure in the truck's air brake system, as well as for the air suspension and other pneumatic accessories.

Hitachi ZX330 Excavator Control Valve (日立ZX330挖掘机控制阀, Клапан управления экскаватора Hitachi ZX330): Situated in the main hydraulic circuit of a Hitachi ZX330 excavator, this complex assembly of spools and valves directs the flow of high-pressure hydraulic oil from the pump to the various actuators (cylinders and motors), allowing the operator to control all machine movements precisely.

Cummins QSK60 Engine Piston Kit (康明斯QSK60发动机活塞套件, Поршневой комплект двигателя Cummins QSK60): This kit is for the Cummins QSK60 engine, commonly used in mining haul trucks and large generators. The piston is a reciprocating component inside the cylinder that transfers force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod.

Fendt 900 Vario Tractor Transmission Filter (芬特900 Vario拖拉机变速箱滤清器, Фильтр трансмиссии трактора Fendt 900 Vario): Located within the transmission housing of a Fendt 900 Vario series tractor, this filter is essential for removing contaminants from the hydraulic/transmission fluid. This protects the sensitive components of the continuously variable transmission (CVT) from wear and damage.

MAN TGS Truck Brake Pad Set (MAN TGS卡车刹车片套件, Комплект тормозных колодок для грузовика MAN TGS): These are part of the disc brake system on a MAN TGS truck. Installed in the brake caliper, they are pressed against the brake disc (rotor) to create friction, converting the truck's kinetic energy into heat and slowing it down.

Doosan DX225LC Excavator Slewing Ring (斗山DX225LC挖掘机回转支承, Поворотный круг экскаватора Doosan DX225LC): Also known as a turntable bearing, this large-diameter bearing is located between the undercarriage and the upper structure of a Doosan DX225LC excavator. It allows the upper house to rotate 360 degrees smoothly while supporting all axial, radial, and tilting moment loads.

Deutz TCD 2013 Engine ECU (道依茨TCD 2013发动机电脑板, ЭБУ двигателя Deutz TCD 2013): The Engine Control Unit (ECU) is the "brain" of the Deutz TCD 2013 engine. It is an electronic control module that reads data from various sensors around the engine (like speed, temperature, pressure) and uses this information to control fuel injection, ignition timing, and other parameters for optimal performance and emissions control.