Amer Holding Co

Block Steel, located in Skokie, Ill., is one of the largest aluminized steel distributors in the United States. The company stocks aluminized stainless, hot dipped galvanized, cold rolled, HRP and distribute tubing. Its inventory averages more than 25,000 tons, which helps expedite orders. The company operates a 165,000 square foot service center with a 72' slitter and 60' multi-cut blanking line. Block Steel's roots began in the 1920's when Albert Block started one of Chicago's first steel warehouses. In 1948, with the assistance of his son Harvey and son-in-law Oscar Wolfson, he founded Block Steel in Forest Park, Ill. Its Samson Roll Formed Products division is one of the oldest and largest custom roll formers in the United States.

Since 1948, industry has relied on Lapmaster International to solve precision finishing problems. The company has a reputation as a leading manufacturer of lapping and polishing systems used in a variety of industries, such as semiconductor, data storage, automotive, technical ceramics, metalworking, optics and electro-optics, medical devices and mechanical seals. Its range of products and services fall into several key categories: single and dual faced flat lapping and polishing equipment; lapping and polishing consumables and accessories; metallographic consumables and accessories; contract lapping and polishing services; and research, development and technical support. Each machine built can be set up for conventional lapping, diamond lapping/polishing, pad polishing, pitch polishing or fixed abrasive fine grinding. Lapmaster also offers a line of specialty equipment, including metallographic sample grinder/polishers, metallographic low-speed diamond saws, high-speed polishers and grinders, large single-piece optical polishers and multi-platen lapping/polishing machines. The company is headquartered in Morton Grove, Ill.