Shoulder strap retaining strips on the biceps. We need two strips that are about 150mm in length or 5 29/32 inches and 15mm in width or 19/32 inches   Then we need to one end on both mark points at 20mm (25/32 inches), 50mm (1 31/32 inches), and 90mm (3 9/16 inches).     Holding a piece of wood a little wide of the mark on both sides to focus the heat from your heat gun turn heat on the area about 2 -3 inches away and heat for 9-10 seconds (more and I foun
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