| 7225.99 | 100 | 1 Bimetal, clad or combined, containing by weight more than 10 % of nickel | 
| 7226.91 | 010 | 1 Of alloy tool steel | 
| 7226.92 | 010 | 1 Of alloy tool steel | 
| 7226.99 |  | 1 Bimetal, clad or combined, containing by weight more than 10% of nickel | 
| 7227.90 | 010 | 1 Of alloy tool steel | 
| 7227.90 | 021 | - Containing by weight 0.0008% or more of boron, less than basis of other elements listed in Note 1 (f) to this Chapter | 
| 7228.30 | 010 | 1 Of alloy tool steel | 
| 7228.40 | 010 | 1 Of alloy tool steel | 
| 7228.50 | 010 | 1 Of alloy tool steel | 
| 7228.60 | 010 | 1 Of alloy tool steel | 
| 7228.70 | 010 | 1 Of alloy tool steel | 
| 7229.90 | 100 | 1 Of alloy tool steel | 
| 7301.10 | 010 | 1 Of alloy steel | 
| 7304.19 | 100 | 1 Of alloy steel | 
| 7304.29 | 010 | 1 Of alloy steel | 
| 7304.31 | 010 | 1 Drill pipe | 
| 7304.39 | 010 | 1 Drill pipe | 
| 7304.41 | 010 | 1 Drill pipe | 
| 7304.49 | 010 | 1 Drill pipe | 
| 7304.51 | 010 | 1 Drill pipe | 
| 7304.59 | 010 | 1 Drill pipe | 
| 7304.90 | 050 | 1 Drill pipe | 
| 7304.90 | 030 | (1)Of alloy steel |