Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel:

7307.11.00Of nonmalleable cast iron 7307.11.00.30For threaded pipe 7307.11.00.45For cast-iron soil pipe 7307.11.00.60Other 7307.19Other: 7307.19.30Ductile fittings 7307.19.30.40Grooved-end fittings (including grooved couplings) 7307.19.30.60Threaded 7307.19.30.70With mechanical, push-on (rubber compression) or flanged joints attached 7307.19.30.85Other 7307.19.90Other 7307.19.90.30Unions 7307.19.90.40Grooved-end fittings (including grooved couplings) 7307.19.90.60Threaded 7307.19.90.80Other 7307.21Flanges: 7307.21.10.00Not machined, not tooled and not otherwise processed after forging 7307.21.50.00Other 7307.22Threaded elbows, bends and sleeves: 7307.22.10.00Sleeves (couplings) 7307.22.50.00Other 7307.23.00Butt welding fittings 7307.23.00.30Not machined, not tooled and not otherwise processed after forming 7307.23.00.90Other 7307.29.00Other 7307.29.00.30Nipples 7307.29.00.90Other 7307.91Flanges: 7307.91.10.00Of iron or nonalloy steel 7307.91.30.00Of alloy steel (except stainless steel) 7307.91.50Other 7307.91.50.10Of iron or nonalloy steel 7307.91.50.30Of alloy steel (except stainless steel) 7307.91.50.50Of iron or nonalloy steel 7307.91.50.70Of alloy steel (except stainless steel) 7307.92Threaded elbows, bends and sleeves: 7307.92.30Sleeves (couplings) 7307.92.30.10Of iron or nonalloy steel 7307.92.30.30Of alloy steel (except stainless steel) 7307.92.90.00Other 7307.93Butt welding fittings: 7307.93.30Of iron or nonalloy steel 7307.93.30.10Not machined, not tooled and not otherwise processed after forging 7307.93.30.40Other 7307.93.60.00Of alloy steel (except stainless steel) 7307.93.90With an inside diameter of 360 mm or more 7307.93.90.10Not machined, not tooled and not otherwise processed after forging 7307.93.90.40Other 7307.93.90.60Of alloy steel (except stainless steel) 7307.99Other: 7307.99.10.00Of iron or nonalloy steel 7307.99.30.00Of alloy steel (except stainless steel) 7307.99.50Other 7307.99.50.15Nipples 7307.99.50.45Other 7307.99.50.60Of alloy steel (except stainless steel)