garage door tension spring adjustment

{"title":"Adjust Hydraulic Brake Automatic Garage Doors Soft And Silent Close","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/1f\/f8\/030a6a69e70a6c8ac55aa7975d76-200x200-1.jpg","attrs":{"Price":"USD90.00\/set to USD 120 .00\/set","Brand Name":"Caterly","Model Number":"906-A","Minimum Order Quantity":"15sets","Delivery Time":"3-7 work days","Certification":"CE,ISO9001","Place of Origin":"Guangdong , China","Payment Terms":"T\/T, Western Union, MoneyGram, L\/C","Supply Ability":"3,000 Sets per Month","Packaging Details":"foam and cardboard cartons and wooden pallet","Door weight":"15KG to 80KG","Door width":"Up to 2600mm","Brake":"Hydraulic","Opening method":"Manually open","closing method":"Automatically closed"}}