71. Match the following:
P. Forging
1. Rails
Q. Rolling
2. Plane wires
R. Extrusion
3. Crankshaft
S. Deep drawing Product
4. Toothpaste tube
5. LPG cylinder
| P. Forging | 1. Rails |
| Q. Rolling | 2. Plane wires |
| R. Extrusion | 3. Crankshaft |
| S. Deep drawing Product | 4. Toothpaste tube |
| 5. LPG cylinder |
72. Match the items in Group 1 with the manufacturing process in Group 2.
Group 1
Group 2
P. I-section for structural work
1. Forging
Q. Base plates for heavy machines
2. Rolling
R. Self lubricating bearings
3. Casting
S. Rotor for turbine
4. Powder metallurgy
5. Extrusion
| Group 1 | Group 2 |
| P. I-section for structural work | 1. Forging |
| Q. Base plates for heavy machines | 2. Rolling |
| R. Self lubricating bearings | 3. Casting |
| S. Rotor for turbine | 4. Powder metallurgy |
| 5. Extrusion |