Door and Window Hardware Torsionspring for Industrial Door

ModelETS-5-1/4Wire diameter3-12mmSpring outside diameter50-180mmSpring inside diameter1-3/4-12mmEverbright torsion springs are manufactured from oil-tempered spring wire. Wire is coated for improved corrosion resistance and earlier handling. Standard 10000 cycle and 25000 + high cycle springs are available in both left or right wound, precut with fittings installed or in long longth. We have different models for you choose. Also, we can customize door brackets according to your requests./* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1