bi directional hook orthodontic torque spring

{"cid":"91108187","title":"Self-developed DC Motor Aluminum Boom Bi Directional Parking Barrier Gate","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/1b\/5f\/7e5f5467dbe16e0e384225be856e-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"WEJOIN","Model Number":"CB01SV","Minimum Order Quantity":"1 set","Delivery Time":"12 working days after payment received","Certification":"CE ISO SGS","Place of Origin":"CHINA","Payment Terms":"T\/T, Western Union","Supply Ability":"10000 sets\/month","Packaging Details":"carton","Boom Type":"Straight boom","Housing color":"flashing gold","Application":"parking lot","Speed":"1-2s\/3-5s speed adjustable","Boom length":"Max 6M (customized)","Arm material":"Aluminum alloy"}}

{"cid":"91222207","title":"One-Way Rotary Damper 10-50kgF.CM Torque for Spring-Loaded Covers","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/78\/d4\/5c184a0574c72a5317ce003a8fbf-200x200-1.jpg","attrs":{"Price":"0.9","Brand Name":"HIE","Model Number":"1012D","Minimum Order Quantity":"1000","Delivery Time":"15 working days","Place of Origin":"CHINA","Payment Terms":"T\/T, Western Union","Supply Ability":"50000pcs\/day","Packaging Details":"Standard Export Packaging","Name":"Rotary damper","Torque Range":"10-50kgF.CM","Body Material":"PC","Pressure Angle":"110\u00b0","Oil":"Silicone Oil","Function":"Soft closing"}}

{"cid":"91198204","title":"API607 2500LB Forging Ball Valve , NPS 60\" Trunnion Type Ball Valve","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/62\/16\/9eb909f575604191ed7dd06be0eb-200x200-1.jpg","attrs":{"Price":"300USD","Brand Name":"OEM","Model Number":"OEM","Minimum Order Quantity":"1PC","Delivery Time":"2-15weeks","Certification":"API6D,API607","Place of Origin":"China","Payment Terms":"L\/C,T\/T","Supply Ability":"20000 pcs per year","Packaging Details":"Polywood cases","Size":"NPS 2\" to 60\"","Pressure":"150LB to 2500LB","Temperature range":"-196\u2103~610\u2103 Low temperatue, Normal Temperature and high temperature","Body and Trim Material":"Cast Steel, WCB,ASTM A105, ASTM A350 LF2, ASTM A182 F304 F304L F316\/F316L\/F51 F53 F55,ASTM A351 CF8 CF8M CF3M ASTM A182 F6a 17-4PH","Seat Material":"PTFE, RPTFE, DEVLON, Molon,PEEK,Metal Seat","Body and Stem Sealing":"Oring(FKM,FFKM NBR,FPM HNBR, VITON,EPDM, AFLAS), Spiral wound Gasket(316SS+ Graphite) Packing(Graphite, PTFE)"}}