Selangor Truck Gear Box Component, Selangor Truck Gear Component Supplier, Truck Relay Valve KL, Truck Gear Box Spare Part Supplier Klang

A relay valve is a key element within a vehicle's air brake system, specifically in systems utilizing air brakes, such as those commonly found in trucks. Its primary purpose is to control the application and release of air pressure to the brake chambers on the vehicle's axles.

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