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Don Knowles, a carpenter with Fred Shearer & Sons, installs a steel support for an exterior building aperture on the East Building at the One North development in North Portland. (Sam Tenney/91视频)
Don Knowles, a carpenter with Fred Shearer & Sons, installs a steel support for an exterior building aperture on the East Building at the One North development in North Portland. (Sam Tenney/91视频)
