Fine Architectural Metalwork ~ Les Métalliers Champenois Fine Architectural Metalwork ~ Les Métalliers Champenois, LMC, architectural, metalwork, ironwork, stair, railings, guard, doors, baths, restoration, commissions, atelier Les Métalliers Champenois (LMC Corp) was founded by a group of high achieving young professionals with a true passion for their art of metalworking. The company now occupies a 22,000 sq/ft space in Paterson NJ where they still perform all kind of custom high metal work.