Abrades surfaces of metal or hard-composition objects to remove adhering scale, sand, paint, grease, tar, rust, and dirt, and to impart specified finish, using abrasive-blasting equipment: Shovels or pours abrasives, such as sand, grit, or shot of specified grade into machine hopper. In Houston, Texas, our 500,000 sq ft Center for Excellence in Lifecycle Care features a Level-IV depot and aero repair facility, which executes comprehensive services for aeroderivative engines under one roof.