macro shot of a metal strip catalyst made of heat-resistant chrome-nickel steel.

auto automobile automotive car catalyst catalysts catalytic catalyzer chrome chromenickel closeup converter diesel dioxide dpf engine exhaust fap filter gas gases harmful heat heatresistant insert macro made manifold mechanic metal muffler nickel noble old palladium particulate pipe piping platinum pollution preliminary protection purification resistant ribbon rust shot steel strip system technology toxic vehicle wavy