 Ramba uchiverenga ndima iyi - Dhipatimendi reStructural Steel rekambani iyi rakagadzira simbi yekugadzira Space Needle yeSeattle World Fair ya1962. Gare gare, yakaita basa guru mukuvakwa kwechivako chechitatu chemagetsi cheGrand Coulee Dam pamwe chete neWorld Trade Center muNew York. 