The temperature controlled chamber has a bottom wall of polymeric material located beneath the conveyor, an outer wall of polymeric material extending upward above the conveyor, a metallic top wall and a metallic inner wall which extends downward to {HEAD ~ the upper surface} of {TAIL ~ the conveyor} 
of
The temperature controlled chamber has a bottom wall of polymeric material located beneath the conveyor , an outer wall of polymeric material extending upward above the conveyor , a metallic top wall and a metallic inner wall which extends downward to { HEAD ~ the upper surface } of { TAIL ~ the conveyor }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL