The core of each catalytic converter is an internal ceramic honeycomb structure that has a washcoat containing platinum (Pt), palladium (Pd), and rhodium (Rh).

The core of each catalytic converter is an internal ceramic honeycomb structure that has a washcoat containing platinum (Pt), palladium (Pd), and rhodium (Rh). - 148393745

A pile of cement in a construction site. Construction waste. Abstract background.

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