42 Engineering services; engineering services related to structures and mechanical systems for permanent dome structures, namely, engineering services for structural, mechanical, plumbing, electrical, conveying, automation, material handling, and transport systems for permanent dome structures; architect and design services; architectural and design services related to structures and mechanical systems for permanent dome structures, namely, architect and design services for structural, mechanical, plumbing, electrical, conveying, automation, material handling, and transport systems for permanent dome structures