Truck trailer landing gear 1. Certificate:ISO 9001:2000 /TS16949 2. 25T,28T,30T,35T Landing Gear MODEL NUMBER:TFOC-5000-A Landing Gear:Specifications 1)25T,28T,30T,35T Landing Gear 2)Gear Inside&Outside landing gear 3)Certificate:ISO 9001:2000 /TS16949 Truck trailer landing gear