An apparatus for enclosing an open area of a boat includes a canvas system with a fabric sheet having an edge formed thereon, a header extrusion mounted on an upper edge of a boat windshield, the header extrusion having a longitudinally extending and outwardly opening slot formed therein, and a plurality of fasteners attached to the fabric sheet at spaced apart locations, each fastener including a hook releasably engaged in the slot.

 
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< Melt-moldable thermoplastic norbornene resin composition and molded article and optical film both comprising the same

< Shear-extrusion method

> Double wall cooking vessel

> Screw with heat exchange function, mixer and extruder

~ 00289