Specifications:Landing gear/ landing gear for trailer /trailer jack Model:CL22TAFY.S??Application: Especially designed for semi-trailer and truckFeatures: Trailer landing with outer gear box and full length welded back plate, static load 60t, dynamic load 22t, gears are made of high grade alloy steel with electrostatic powder spraying technology
link:http://www.yztym-china.com/landing-gear/22t-landing-gear/22t-outer-gearbox-big-backboard-landing-gear.html