Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 126,749 pages of information and 199,759 images on early companies, their products and the people who designed and built them.
of Salisbury House, London Wall, London, EC.
Works of Landore, South Wales.
1888 Mannesmann Tube Co Ltd registered with £300,000 capital. 
c1890 Took over Landore steel works, Swansea. 
1900 Catalogue of weldless steel tubes, fittings, gas bottles, poles and tubular specialities. 
1900 June. Tramways and Light Railways Exhibition at Islington. Showed traction, arc and trolley poles. 
1913 In order to meet increasing demand, the site for a new tube works was found at Newport, Mon.
1914 Manufacturers of weldless steel tubes. Specialities: weldless steel tubes for boiler, steam and hydraulic purposes, telegraph and traction poles, spigot and faucet pipes, hollow davits, derricks and deck supports, gas cylinders, brass and copper tubes. Employees 1,500 to 1,600. 
1918 The new works was brought into operation. The company decided to restrict the manufacture of the smaller tubes to the Landore works, whilst tubes above 6 inches and up to 16 inches outside diameter would be produced at the Newport works.
1926 The Mannesmann Tube Works, Landore, near Swansea, restarted operations on Monday with supplies of foreign coals, with the hope to be able to maintain work, as they have sufficient coals, it was estimated to last to the end of the coal stoppage.
1936 New company formed United Tube (Holdings) Ltd to acquire British Mannesmann Tube Co. The new company would enter into agreements with Mannesmannrohren Werke, Stewarts and Lloyds, Tube Investments and others.