Tray material

Symbol
$M_{tray}$
Choices
CodeMaterial
PEtray made of plastic PE (polyethylene)
PPtray made of plastic PP (polypropylene)
PVCtray made of plastic PVC (polyvinylchloride)
Alutray made of metal (aluminum)
StNtray made of metal (galvanized steel, new)
StWtray made of metal (galvanized steel, weathered)
Fibretray made of fibrous material (glass-reinforced plastic, GRP)
Cemtray made of cement