The oil pan of a car engine is made of metal (such as aluminum alloy) to ensure sufficient strength and durability , it is the bottom component of the engine that seals the bottom of the engine and holds the engine oil. It plays an important role in the engine system, protecting internal engine components while also providing engine oil storage and drainage functions. The oil pan may be a casting or a combination of parts, manufactured by die casting or machining. Its design and manufacture need to consider factors such as strength, sealing and ease of maintenance to ensure smooth and reliable engine operation. Leakage Test is a testing method used to test whether an object has vulnerabilities or leaks. This test is typically used to ensure that products, containers, pipes, seals, etc. can remain sealed under pressure or vacuum conditions without leakage of gas or liquid. Helps determine if an object is leaking to avoid potential hazards and quality issues. Used in the automotive industry to test the waterproof performance of automotive parts, seals and chassis components to ensure that the vehicle does not leak while driving. Fuhe's professional team is your first priority.