21. Featuring iron as its main structural material , the house was later completed by George Ledwell Taylor. 22. At the time, the budding architect Gustave Eiffel was experimenting with Iron as a structural material . 23. The principal structural material was Duraloid, a plywood impregnated with resin and processed under a patented process. 24. With this goal in mind, the configuration and systems'arrangement were chosen, assemblies designed, and structural materials tested. 25. The foam, not normally considered to be a structural material , is required to bear some aerodynamic loads. 26. An important occurrence of phosphates in biological systems is as the structural material of bone and teeth. 27. When installed correctly, the K & T wires are held away from the structural materials by ceramic insulators. 28. I think all the structural material all of a sudden is going to change drastically in the detail. 29. He has been credited with innovations in the use of reinforced concrete as a structural material in skyscrapers. 30. Much of the structural material was long ago carried off for reuse in buildings in Cley and Blakeney.
