r value of extruded polystyrene

{"cid":"91099039","title":"extruded polystyrene insulation board\/XPS insulation board","imgUrl":"https:\/\/img.chinax.com\/nimg\/fd\/d2\/8e89fab780b3643f6826f534110f-200x200-1.jpg","attrs":{"Price":"US $132.69 - 168.26","Brand Name":"Beipeng","Model Number":"+86 10 13521135351","Minimum Order Quantity":"40HQ","Place of Origin":"Beijing","Certification":"ISO14001,ISO9001,Branz,China Environmental labelling","e-mail:":"malen0908@gmail.com","Payment Terms":"L\/C,T\/T","Supply Ability":"1,200,000 Cubic Meter\/Cubic Meters per Year"}}

{"cid":"91214912","title":"Grade B1 Extruded Polystyrene XPS Insulation Board Floor Heating Insulation","imgUrl":"https:\/\/img.chinax.com\/nimg\/27\/21\/99581572816cee2a815232d8e5ae-200x200-1.jpg","attrs":{"Price":"$3.28","Brand Name":"HaiKe","Model Number":"HKRW10","Minimum Order Quantity":"100Square Meters","Delivery Time":"5-8 work days","Place of Origin":"Chongqing,China","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"1000000Square Meter\/Square Meters per Month","Packaging Details":"1. There is a plastic bag inside. 2. Take a woven bag. 3. Vacuum waterproof packaging.","Product name":"Xps Extruded Board Floor Heating Insulation","Size":"10-80mm","Density":"27-35Kg\/m3","Compressive Strength":"250kpa","Flame Retardant":"B1 B2","Length":"1.2\/2.4m"}}

{"cid":"91171453","title":"High Precision Rubber Testing Machine , Electronic Melt Flow Indexer","imgUrl":"https:\/\/img.chinax.com\/nimg\/f7\/eb\/0f9300d9b02fe0d245823534f2bf-200x200-1.jpg","attrs":{"Price":"Negotiate","Brand Name":"Kejian Kinsgeo","Model Number":"KJ-3092B","Minimum Order Quantity":"1 set","Delivery Time":"in stock,5-10 working days after order confirmed","Certification":"ISO,CE and etc","Place of Origin":"Dongguan China","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union,MoneyGram,In cash, escrow","Supply Ability":"100 Sets per Month","Packaging Details":"Each set protected with resin fiber and PP film, then put into Professional Plywood Strong wooden case","Usage Strength":"Testing Machine","Operation":"Manual+Automatic","Warranty":"12 Months","Aplication":"Rubber","Power":"AC220V\u00b110% 50HZ","Standard":"GB\/ T3682-2000","Output":"Mini-automatic printout","Diameter of Barrel":"\u03a62.095\u00b10.005mm","Weights":"1200g,2160g,3800g,5000g"}}