OKLAHOMA CITY, OK - AG&M (Architectural Granite and Marble) has announced that it has opened a new natural stone slab/tile warehouse and showroom in Oklahoma City, OK. The company now has four slab and tile distribution facilities (Austin, TX; San Antonio, TX; Nashville, TN; and Oklahoma City, OK). The company is a wholesale distributor of natural stone tile and slabs and a slab producer of North American granites.