Fire extinguishing compositions; fire extinguishing preparations consisting primarily of finished glass granulate, hollow glass granulate, hollow glass balls, and micro hollow glass balls; all of the foregoing used to fight or prevent fires; glass granulate, hollow glass granulate, hollow glass balls, and micro hollow glass balls, sold as an integral component of fire extinguishing compositions; balls made of metal, hollow balls made of metal, hollow micro balls made of metal, sold as an inte...