Valves and piping in an ammonia system are made of
A. Iron
B. Bras
C. Copper
D. Bronze
Answer: A
Valves and piping in an ammonia system are made of
A. Iron
B. Bras
C. Copper
D. Bronze
Answer: A
A. Iron
B. Bras
C. Copper
D. Bronze
Answer: A
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