There is also preferably provided with the profile and capping, a flexible gasket means which may include {HEAD ~ respective gaskets} associated with both the base frame and {TAIL ~ the operating leaf frame} 
associated with
There is also preferably provided with the profile and capping , a flexible gasket means which may include { HEAD ~ respective gaskets } associated with both the base frame and { TAIL ~ the operating leaf frame }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL