how to replace double glazed unit

{"cid":"91174774","title":"Low E Insulated Glass Panels Curtain Wall Fact \/ Skylight Triple Double Glazing Glass Replacement","imgUrl":"https:\/\/img.ismap.com\/nimg\/bc\/36\/6f89897a04d5263c2208ed877513-200x200-1.jpg","attrs":{"Price":"negotiable","Brand Name":"SYSEN","Minimum Order Quantity":"1 PIECE","Delivery Time":"25 DAYS","Certification":"IGCC IGMA","Place of Origin":"CHANGSHU CHINA","Payment Terms":"L\/C, T\/T","Supply Ability":"10000 PIECE MONTH","Packaging Details":"plywood packing","Technique":"Clear Glass, Coated Glass, Figured Glass, Frosted Glass, Stained Glass, Tempered Glass, Tinted Glass, Wired Glass","size":"Custom design availble","Shape:":"Curve, Flat","Packing":"wooden cases","Application":"building","Structure":"Hollow"}}

{"cid":"91201919","title":"15A Double Clear Annealed Insulated Window Glass Replacement 12mm Heat Absorbing","imgUrl":"https:\/\/img.ismap.com\/nimg\/1e\/b9\/d1f70cf3072cd94e3280e6ac45d8-200x200-1.jpg","attrs":{"Price":"10USD","Brand Name":"inlaid","Minimum Order Quantity":"100PCS","Delivery Time":"25days","Place of Origin":"China","Certification":"IGCC","Packaging Details":"plywood","Payment Terms":"TT","Supply Ability":"10000\/M","Function":"Heat Absorbing Glass|Heat Reflective Glass|Insulated Glass|Low-E Glass","Shape":"Flat","Structure":"Hollow","Technique":"Clear Glass|Stained Glass|Tempered Glass","Single glass thickness":"3.2-12mm","Spacer thickness":"6A, 9A, 12A, 15A, 20A etc"}}