supply of vistadome coach roof double glass unit, 6 mmvistadome coach roof double glass unit, 6 mm,vistadome coach roof double glass unit, 6 mm sgg xtreme 50/22 toughened (coating on #2)+1 6mm argon gap stainless steel spacer+44 privalite classic-edge finish: arising-sealant depth: 8mm (thickness 32mm +/- 2mm. size- 630 mm (width) x 2160 mm (length). note 1: firm should see the sample at c oach before manufacturing note 2: fogging/defogging test certificate to be given by firm. note 3: operating voltage to be as per the sample seen at coach. note 4:sam ple to be approved before bulk supply. [ warranty period: 30 months after the date of delivery ]