Master makes metal hardness measurement. Crankshaft.
Keywords
crankshaft,
wheel,
industry,
quality control,
people,
working class,
man,
measuring,
quality,
engine,
engineering,
car,
metal,
new,
alloy,
cylinder,
design element,
garage,
machine part,
manufacturing,
motion,
kfz,
piston,
repairing,
substitution,
service,
spare part,
steel,
technology,
transportation,
part of,
shiny,
equipment,
photo