Filwel Products India Pvt. Ltd. Manufactures Buildup Wires for Rebuilding Components. Filwel Products India Pvt. Ltd. Manufactures Build-Up Wires, Thermal Spray Wires and Automatic Welding Systems. The Buildup Wires for Rebuilding Components comes under the brand name "Buildup - S" is ideal for rebuilding components exposed to high impact and corrosion. The weld deposit is tough, corrosion resistant austenitic stainless-steel, and work hardens with impact or rolling loads in service. The Buildup Wires for Rebuilding Components is an excellent choice for a buffer layer prior to hard facing.