 They manufactured special steels for motor-cars and aeroplanes, projectiles and other war materiel, crushing machinery, tramway track work and many other steel and engineering products.Their plant was capable of producing 150,000 to 200,000 tons of high-grade and special steels each year by the Hadfield system and by employment of open-hearth furnaces (acid and basic), crucible and electric furnaces and many other substantial items.Plant included some 300 electric steam and other overhead cranes, 21 large and small locomotives, more than 21 miles of railway, 250 heating furnaces and hydraulic forging presses up to about 2,000 tons capacity.