Metlab is no ordinary heat treating company. Not only do we offer superior quality and reliability, which is expected from a heat treater, but we also have extraordinary capabilities in terms of size and quantity. Our commercial thermal processing capabilities include nitriding, carburizing, carbonitriding, boriding, neutral atmosphere hardening, annealing and black oxide treatment. Metlab's superior program management has earned us government defense contracts. We can handle parts weighing up to 43,000 lbs.