Valley craft single cylinder truck spark-resistant aluminum cylinder truck for safe, efficient handling of pressurized tanks. Heavy-duty single frame handles cylinders 9″ in diameter. Balanced frame rolls easily on 12″ x 3-1/2″, fully-pneumatic tires. 1″ steel axle is enclosed in protective housing with sealed bearings. Truck is constructed of 1-5/16″ o.d. Aluminum tubing with notched joints and solid welds. 600-lb. Capacity.