VINO PROTANK

Containers not of metal, including casks, barrels, drums, kegs, and vats; Staves of wood, including cut staves, split stave, cut and split staves, and sticks and balls made with staves; Barrel hoops, not of metal; Cask hoops, not of metal; Non-metallic valves for controlling the flow of liquid into barrels; Non-metallic valves for controlling the flow of liquid out of barrels