Austin Corporation Agrees Contract to Create Roof Top Wind Turbines for Ninety Thousand Square Feet Stockroom. Building Turbines (PINKSHEETS: B_L_D_W) Works on the Composition and Fabrication of Copyrighted Roof Wind Turbines. Stock Symbol: B_L_D_W Trading Date: Aug, 5 Long Term Target Price: 0.85 Price: $0.038 Name: BUILDING TURBINES INC Environment Friendly Power Corporation Ripe To Soar When Market Opens.