PORTASILO

buildings and structures made wholly or principally of metal, namely silos and containers in the nature of silos

Installations for the bulk handling of granular and pulverulent materials;namely, discharge valves, dischargers, discharge machines and feeders for silos, hoppers, bins, bunkers and tanks, batch weighing machines, bag and bin filling and emptying machines; conveyors; cement, sand and concrete mixers and pourers; silo content loading, unloading and emptying machines and hoppers; and valves being parts of hopper machines or of silos