The engagement means for engaging the attachment and retention members is formed as an integral portion of the members during the extrusion of the members and provides variable spacing between the retention and attachment members so that the retention means may retain {HEAD ~ side windows} of {TAIL ~ various thickness glass} 
of
The engagement means for engaging the attachment and retention members is formed as an integral portion of the members during the extrusion of the members and provides variable spacing between the retention and attachment members so that the retention means may retain { HEAD ~ side windows } of { TAIL ~ various thickness glass }
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