installing torsion spring garage door

{"title":"Nitinol Bimetal Garage Door Lock Spring Heavy Duty Torsion Springs","imgUrl":"https:\/\/img.chinax.com\/nimg\/83\/89\/945199e83e96197ce4600873de93-200x200-1.jpg","attrs":{"Price":"$0.08 - $0.7USD\/ Piece\/Pieces","Brand Name":"HEZHI","Model Number":"N\/A","Minimum Order Quantity":"1000pcs","Delivery Time":"7-15 work days","Certification":"Rohs&Reach","Place of Origin":"China","Payment Terms":"T\/T, L\/C","Supply Ability":"10,000,000 Piece\/Pieces per Month According to the order","Packaging Details":"PE Bag with Carton Box","Product name":"Nitinol Bimetal Install in Garage Door Lock Powder Heavy Duty Torsion Spring","Application":"Hardware ,Furniture, Industrial, Auto, Car ,Toy and more","Size":"According to the requirements","Finish":"Zinc\/Nickel\/Chrome\/Powder coating or customized","Wire Diameter":"0.05mm-20.0mm or as requirement","Material":"Steel, Alloy, copper, music wire, alumium etc","Usage":"Industrial, Furniture","Ship term":"CIF\/FOB\/CIF\/EXW","Service Accept":"OEM,ODM"}}