ANN ARBOR, Mich. – As of January 1, 2010, new lead content requirements in California (commonly known as AB 1953) will mandate a maximum weighted average lead content of 0.25 percent for plumbing ...
This week's gallery highlights an above-ground wastewater pump station, a small backflow preventer, a hybrid builder heat pump, a heat pump chiller, a vented hard shell bump cap, and an advanced stud ...
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