The Times-Tribune is reporting on how the oil and gas industry is leading local businesses to diversify: "General Dynamics Ordnance and Tactical Systems makes swivel elbow and drill-pipe connecting joints used at the region's Marcellus Shale gas wells. *** Sales of manufactured gas-development materials help companies in the area diversify and tap into the lucrative energy-development market. *** General Dynamics, which manufactures parts and casings for military projectiles, relied on Pentagon orders for 95 percent of its production in 2009, Mr. Brunozzi said. Today, he said, defense work makes up about 70 percent of the work at the plant, which employs 300 people."