Established and incorporated in 1979, D-S Pipe & Supply is an independent, full line, stocking distributor of steel, pipe, va ... lve, fittings and piping specialties. All stock under one roof, located in Baltimore with ready access to I-95, the company fleet services from a 120,000 square foot warehouse. Delivery to most areas is on a daily basis; servicing Maryland, D.C., Virginia, Delaware and portions of Pennsylvania, West Virginia and New Jersey At D-S Pipe & Supply, we represent the premier lines in the industry by supplying over 120 different industrial product lines with a primary focus on steel, pipe, weld fittings, groove fittings, gate, globe, butterfly and ball valves. Our huge inventory enables us to immediately pull 95% of all orders and stage them for next day delivery. read more