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The requirements and challenges of residential fire sprinkler systems and water meters | 2020-05-15 | PM Engineer
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Amazon.com: (2 Pack) FM Approved & UL/CUL Listed TUNA Fire Sprinkler Head Pendent Spray 1/2” NPT 155°F (68°C) K=5.6 K80 Standard Response for Automatic Fire Sprinkler System Bronze : Everything Else
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