Sorting minerals into different grades
Palabras clave
accessory,
coast,
dividing,
drain,
equipment,
contraption,
handle,
hard,
heat,
isolated,
metal,
metallic,
mineral,
mountain,
netting,
prepare,
rock,
round,
salt,
separation,
sieve,
single,
steel,
strainer,
tool,
utensil,
laundered,
industrial,
weight,
ore,
mineral,
iron,
fer,
mixing