Cast automotive intake pipe with a smooth curved passage, machined flange, and auxiliary port for engine air systems.



Dongying Tousin produces cast automotive intake pipe with controlled wall thickness, accurate mounting points, and consistent internal passages. Flexible materials and machining options support water, chemical, and industrial pump assemblies.
From tooling review to final inspection, our team manages casting, machining, surface treatment, and dimensional checks. OEM sizes and finishes are available for dependable pump housing production with practical lead times.