Metal pipes and tubes; Metals and metal alloys; Valves of metal, other than parts of machines; Water-pipe valves of metal

Metal pipes and tubes; Metal valves not being parts of machines; Metals and metal alloys; Water-pipe valves of metal

(Based on Use in Commerce) Parts of oilfield wellhead machines, namely, gate valves, ball valves, check valves, plug valves, globe valves, choke and manifold industrial pumps, pump and valve parts, pipe fittings and flanges(Based on 44(d) Priority Application) Parts of oilfield wellhead machines, namely, gate valves, ball valves, check valves, plug valves, globe valves, choke and manifold industrial pumps, pump and valve parts, pipe fittings and flanges