How do piercing pliers differ from braze-on piercing valves with regard to how they are used on sealed systems?
A) Piercing pliers cannot be a permanent solution.
B) Piercing pliers cannot be used to recover refrigerant.
C) Piercing pliers require a bolted valve.
D) Piercing pliers have a greater danger of causing overheating.
A
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What will be an ideal response?
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