Tubes Ltd of Rocky Lane, Aston, Birmingham. Telephone: Aston Cross 3030. Telegraphic Address: "Cylinders, Birmingham"
1906 Private company. The company was registered on 14 December, in reconstruction of a company of the same name, and carries on the business of manufacturers of weldless steel tubes. 
1919 Tube Investments was registered as a public company, combining the seamless steel tube manufacturing companies of Tubes Limited, Credenda Conduits Co, Simplex ConduitsLtd, Star Tube Co and St. Helen's Tube and Metal.
1937 Listed Exhibitor - British Industries Fair. Cold Drawn Weldless Steel Tube, ¼ in. (6.35 mm) to 14½ in. (36.8 cm) bore, for all purposes. Axle and Torque Tubes, for road vehicles. Resistco Stainless Special Alloy Tubes. Export sales see British Tube Mills (Export) Ltd. 
1961 Manufacturers of hot rolled and cold drawn seamless steel tubes and tubular forgings. 2,150 employees.