1. Lead.......... screw nutphosphor bronze. |
2. Piston..........cast iron. |
3. Cam..........EN-31 steel. |
4. Lead screw..........wrought iron. |
A) 2, 3 and 4
B) 1, 3 and 4
C) 1, 2 and 4
D) 1, 2 and 3
Correct Answer: B
You need to login to perform this action.
You will be redirected in
3 sec