6 hour duration fire roller curtain

{"cid":"91151403","title":"High Humidity Fire Roller Curtain With Less Than 4 Hours Fire Duration","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/69\/7b\/8e9216c20a93ed33227539cd4a71-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"Guangzhou Xingjin Fire Equipment Co.,Ltd.","Model Number":"Super fire roller curtain","Minimum Order Quantity":"100 set system","Delivery Time":"15-20","Place of Origin":"Guangzhou, Guangdong, China","Certification":"GSG\\TUV\\ I S O 9 0 0 1, 1 4 0 0 1, 4 5 0 0 1","Payment Terms":"T\/T, L\/C","Supply Ability":"30000 sets per month","Packaging Details":"Plywood outer box with bubble bag or paper","Application":"Commercial Building","Open Style":"Rolling","After-sale Service":"Online Technical Support","Track":"Double Track","standard":"GB14102-2005","Surface Finishing":"Finished","fire duration":"Less Than 4 Hours","ambient humidity":"\u226490%\uff0825\u2103\uff09"}}

{"cid":"91187059","title":"Four Hours Rating Rolling Steel Fire Door \/ Gray Fire Rated Roller Shutter","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/b8\/f6\/02ab6e42f210160815a6920caeba-200x200-1.jpg","attrs":{"Price":"negotiable","Brand Name":"ZHONGWO","Model Number":"ZW-JL11","Minimum Order Quantity":"1 set","Delivery Time":"35 Days After Payment Received","Certification":"3C, ISO9001:2008","Place of Origin":"CHINA","Payment Terms":"western union, moneygram,cash, l\/c, t\/t","Supply Ability":"600 Sets per Day","Packaging Details":"Inside Bubble Bags+ Strong Carton+Wooden Frame","Material":"Inorganic Fiber Composite Cloth","Fire Resistance Duration:":"4H","Smoke Leakage":"0.05m3\/(m2.min)","Reel Deflection":"1\/2059(Standard:<1\/400)","Height Difference between two Curtain Surfaces":"8mm(\u226650mm)","Heat Insulation":"52\u2103(Average Temperature Rise on the Back Surface:\u2266140\u2103 )"}}