40 Contract manufacturing in the field of large mobile equipment for agriculture, aviation, construction, forestry, industrial/utility, material handling, mining, oil and energy, and railroad industries; Custom manufacture of large mobile equipment for agriculture, aviation, construction, forestry, industrial/utility, material handling, mining, oil and energy, and railroad industries; Manufacture of large mobile equipment to order and/or specification of others in the agriculture, aviation, construction, forestry, industrial/utility, material handling, mining, oil and energy, and railroad industries; Manufacturing services for others in the field of large mobile equipment for agriculture, aviation, construction, forestry, industrial/utility, material handling, mining, oil and energy, and railroad industries