Mobility. D&L Foundry and Supply has the equipment needed to deliver your order quickly and efficiently. With a fully trained staff of service oriented professionals, you get coordinated and responsive service when you deal with D&L.The D&L team is qualified to serve all of your construction casting and steel fabrication needs. Inventory. Now, most D&L castings are supplied by the new multi-million dollar, state-of-the-art facility in Washington state. D&L is pleased to present the largest and most comprehensive collection of construction castings in the West.Quality is companion to quantity at D&L. All metal used in D&L castings conforms to ASTM 48-93 Class 35B for gray iron and to the ASTM A-536-84 Grade 80-55-06 for ductile iron, or to the grade the customer specifies.Castings also meet Federal Specification A-A6005 (Formerly RR-F-621E). Know How. All ferrous castings are maufactured by D&L Foundry or pre-approved equal. Castings are smooth and cleaned by shotblasting, are of uniform quality and are free of blowholes, distortion or any other defects. All D&L Foundry castings are cast using the centuries-old Green Sand Method.