Therma-Fab, Inc. is a company based in Titusville, PA, USA, specializing in the production of custom metal castings and components for various industries, including the petrochemical sector. They offer services such as casting, stamping, machining, welding, fabrication, pattern making, and engineering. Their product range includes furnace observation 'peep' doors, hearth furnace rabble arms, and a variety of metal components in materials like iron, steel, stainless steel, and specialty alloys. Therma-Fab also provides heat-treating solutions and has expertise in petrochemical manufacturing, sand and investment casting, machining, and fabrication.