H

Goods made of glass-fiber reinforced plastics, namely, pipes in the nature of flexible air exhaust pipes for venting, flexible plumbing pipes of plastic for waste water, flexible conduit pipes, and cast parts, namely, non-metal flanges, flexible by-pass pipes not of metal, non-metal flexible elbow pipes, flexible t-pipes not of metal

Goods made of glass-fiber reinforced plastics, namely, pipes in the nature of rigid air exhaust pipes for venting, rigid waste water pipes, rigid conduit pipes and formwork, namely, sheathing board

Goods made of glass-fiber reinforced plastics, namely, cast parts of all kinds, namely, valves of plastic being other than machine parts, non-metal storage tanks and containers not of metal for commercial use, casks not made of metal