Moro Corp., Wayne, PA, has acquired J & J Sheet Metal Works, Vestal, NY.   ; J & J fabricates and installs commercial grade sheet metal products used in the heating, ventilating and air conditioning (HVAC) industry.   ; The company's customers are primarily mechanical contractors doing HVAC work for schools, hospitals, and industrial, commercial and governmental buildings. The company's customers are primarily in the Southern Tier Region of New York State.   ; Moro is a construction products and services company engaged in the fabrication of concrete reinforcing steel (rebar), sheet metal (duct work), structural steel and process piping, the distribution of construction steel, miscellaneous steel and construction accessories, and commercial/industrial/residential mechanical contracting services (HVAC, plumbing, and piping).