Identify from top to bottom:
1.
2.
3.
4.
5.
Answer: 1.pipe elbow down, 2.pipe elbow up, 3.pipe tee down, 4.pipe tee up.
are-review PPD & PDD Exam resources
1.
2.
3.
4.
5.
Answer: 1.pipe elbow down, 2.pipe elbow up, 3.pipe tee down, 4.pipe tee up.
are-review PPD & PDD Exam resources
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