optimal torque 3 0n cm rotary dental files

{"cid":"91200081","title":"BS 3.0N\/Cm Rotary Endo Files , Metal Silver 31mm Rotary Files","imgUrl":"https:\/\/img.chinax.com\/nimg\/7a\/19\/d5f578a1d8a50f9c4bd45577489d-200x200-1.jpg","attrs":{"Price":"depends on purchase quantity","Brand Name":"SANI","Model Number":"03\/15. 04\/20. 06\/25","Minimum Order Quantity":"200 packs","Delivery Time":"7 days","Certification":"ISO(SGS) , CE(SGS) , FDA","Place of Origin":"Sichuan, China","Payment Terms":"T\/T","Supply Ability":"20,000 pcs per day","Packaging Details":"3 pcs\/pack , 10 packs \/box , 4400 box\/ carton( 72CM*43CM*50CM)","Nickel Titanium":"blue Nano coating","Stainless steel":"Metal silver","Power Source":"Machinery","Instrument classification":"IIA","Type":"Dental Drill & Accessories","Shelf Life":"5 Years"}}

{"cid":"91213998","title":"Endodontic Treatment Dental Endo Motor 2 IN 1 Rotary Y-Smart 1 Built-In Apex Locator","imgUrl":"https:\/\/img.chinax.com\/nimg\/70\/65\/a0684ae52c66ff893e927717ce89-200x200-1.jpg","attrs":{"Price":"USD$183\/piece","Model Number":"XY-EDM5","Minimum Order Quantity":"2 piece","Payment Terms":"L\/C, D\/A, D\/P, T\/T","Item":"Endo Motor","Torque":"0.5-3.0N.cm","Type":"Root-Canal Filling Material","Instrument classification":"Class II","after service":"Online technical support","material":"Metal, Plastic","Ratio speed":"1:1","Screen":"Colorful OLED","Warranty period":"1 years","Power":"DC5V\/1A","Function":"6 Functions"}}