For current job openings, visit www.MarmonKeystone.com A leading wholesale distributor of tubular products for over 100 years ... , Marmon/Keystone inventories more than 15,000 sizes and grades of carbon, alloy, stainless and aluminum tubular and bar products. Marmon/Keystone also offers a full range of value added services to enhance manufacturing needs. Service centers and sales offices are located throughout North America, with corporate headquarters in Butler, Pennsylvania. Marmon/Keystone LLC and affiliated businesses are Marmon Distribution Services/Berkshire Hathaway companies and members of The Marmon Group, an international association of approximately 150 business units that operate independently within diverse business sectors. read more