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