Which of the following are included in the finishing operations for porous bearing? 1. Infiltration 2. Sizing 3. Heat treatment 4. Coining Select the correct answer using the code given below:

Which of the following are included in the finishing operations for po

1.	Which of the following are included in the finishing operations for porous bearing? 1. Infiltration 2. Sizing 3. Heat treatment 4. Coining Select the correct answer using the code given below:
A.	1 and 2
B.	2 and 3
C.	2 and 4
D.	1 and 4
Answer» B. 2 and 3

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Which of the following are included in the finishing operations for porous bearing? 1. Infiltration 2. Sizing 3. Heat treatment 4. Coining Select the correct answer using the code given below:

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