Fusion Splicing. Fusion splicing is the process of fusing or welding two fibers together usually by an electric arc. Fusion splicing is the most widely used method of splicing as it provides for the lowest loss and least reflectance, as well as providing the strongest and most reliable joint between two fibers. Virtually all singlemode splices are fusion.
Disc Brakes. A disc brake system consists of a brake disc, a brake calliper and brake pads. When the brake pedal is applied, pressurised hydraulic fluid squeezes the brake pad friction material against the surface of the rotating brake disc. The result of this contact produces friction which enables the vehicle to slow down or stop.
Brake Drums. Drum brakes were standard equipment on cars and trucks for decades, then in the 1970s they were relegated to the rear axle by front disc brakes. Today most vehicles have four wheel disc brakes, but drum brakes are still used at the rear on many trucks and non-performance cars.