{HEAD ~ The opposite side} of the carriage is fixedly fitted with {TAIL ~ a compressible silicone rubber} or other resilient valve member in sealing engagement with a port plate to carry out vacuum valving functions 
is fixedly fitted with
{ HEAD ~ The opposite side } of the carriage is fixedly fitted with { TAIL ~ a compressible silicone rubber } or other resilient valve member in sealing engagement with a port plate to carry out vacuum valving functions
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH