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			I checked my panels while looking up the  channel specs.  My panels are 1/8" thick but then have 1/8" strips added to one side along the top and bottom edges.  However as Phil says there is variations
 The other thought I had was if you used the Speanur stuff is to make a 4mm spacer for the window frame.
 
				__________________Jordan Baker
 RHLI Museum,
 Otter LRC
 C15A-Wire3, 1944
 Willys MB, 1942
 10cwt Canadian trailer
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