frd fire rated concealed overhead door closer

{"cid":"91201827","title":"Aluminium Overhead Fire Door Closer , 150\u00d737\u00d757mm hidden door closer","imgUrl":"https:\/\/img.ismap.com\/nimg\/47\/cd\/4f83634674b4dcc5bb156aa6161c-200x200-1.jpg","attrs":{"Price":"USD 3.468 - 12.698 \/ Pc","Brand Name":"HANZSON","Minimum Order Quantity":"100 Pcs","Delivery Time":"30 work days","Place of Origin":"Foshan, China","Payment Terms":"T\/T, L\/C","Supply Ability":"10000 Pcs per Month","Packaging Details":"50 pcs per ctn","Material":"Aluminium","Name":"Door Closer","Usage":"Wooden door , metal door , steel door , fire door","Application":"Building","MOQ":"50 pcs","Treatment":"Matt Black Stainless","Style":"Modern","Color":"Customized"}}

{"cid":"91188155","title":"Cam Action Concealed Door Closer Fire Rated UL Listed Casting Iron","imgUrl":"https:\/\/img.ismap.com\/nimg\/95\/73\/e2e35ed32b130737d7964b8f7f2f-200x200-1.jpg","attrs":{"Price":"Negotiable\uff08very competitive\uff09","Brand Name":"GRH","Model Number":"OB-100,OB-1035,OB-105,OB-CD60","Minimum Order Quantity":"1000 PCS","Delivery Time":"20 days to 50 days after received the deposit.","Place of Origin":"ZHEJIANG,CHINA","Payment Terms":"L\/C, D\/P, T\/T, Western Union","Supply Ability":"30000 Piece\/Pieces per Month","Packaging Details":"Export packing","Product Name":"Door closer","After-sale Service":"Online technical support, Onsite Installation, Onsite Training","Design Style":"Modern","Door weight":"40-65kg"}}

{"cid":"91185979","title":"19x95mm SS 304 Fire Rating Spring Heavy Duty Concealed Hinges 180 Degree Hidden Hinge","imgUrl":"https:\/\/img.ismap.com\/nimg\/9b\/d6\/7929130d562f12a8dbefb550956d-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"JKL","Model Number":"CG008","Minimum Order Quantity":"Negotiation","Delivery Time":"30 days.(A small amount of stock all the time)","Certification":"Fire-rating,SGS,CNAS","Place of Origin":"Jiangmen, Guangdong","Payment Terms":"T\/T, Western Union, MoneyGram, PayPal","Supply Ability":"30,000 pcs\/month.","Packaging Details":"1 pc\/poly bag, 2 pcs\/inner white box, 40 pcs\/carton.","Main Usage":"Fireproof door, Self closing door, Channel gate","Advantages":"Fireproof, Spring close, Antirust","Weight loading":"50 kgs\/3 pcs","Size":"19x95x13mm","Material":"Casting SS 304 body, SS 304\/201 connecting arms","Surface finish":"Satin Stainless steel","Open degree":"180\u00b0","Min door thickness":"30mm","Spring force":"Fixed, can not be adjusted","90\u00b0 location":"Yes"}}