This OE 1202Z64-001 exhaust flexible metal hose is constructed with double-layer stainless steel corrugated inner tube plus outer protective braided ring, outstanding high temperature resistance and ductility. The flexible wave structure effectively absorbs engine startup vibration, bumpy road chassis shaking and thermal expansion displacement, avoiding rigid exhaust pipe stress fracture. Both ends are integrated with thick cast steel mounting flanges, pre-drilled with standard positioning bolt holes that perfectly match Dongfeng KC exhaust pipeline interface for direct bolt-on installation without gasket modification. The stainless steel material features excellent anti-rust and anti-corrosion performance, resisting exhaust condensate, road mud and salt fog erosion to extend service life under long-distance haulage. Smooth inner channel keeps stable exhaust flow to avoid excessive backpressure and engine power loss.