id	keyword
cet-14805	plastic
cet-14805	waste
cet-14805	recycling
cet-14805	machine
cet-14805	pet
cet-14805	materials
cet-14805	shredding
cet-14805	engineering
cet-14805	screw
cet-14805	energy
cet-14805	shredder
cet-14805	extrusion