The mineral casting is preferably made of {HEAD ~ resin}, {TAIL ~ hardener} and mineral fillers 
The mineral casting is preferably made of { HEAD ~ resin } , { TAIL ~ hardener } and mineral fillers
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH