skilled steel workers testing steel engine components at the mill / united kingdom - 合金 個影片檔及 b 捲影像00:12
skilled steel workers testing steel aircraft engine at the mill / united kingdom - 合金 個影片檔及 b 捲影像00:09
steel furnace operation, with hot metal manufactured piping being moved on chains / united kingdom - 合金 個影片檔及 b 捲影像00:13
april 27, 1994 factory workers tying bundles of pipes with metal strips and moving overhead sealer / south africa - 合金 個影片檔及 b 捲影像00:25
april 27, 1994 montage steel pipes sliding across conveyor and worker separating them in factory / south africa - 合金 個影片檔及 b 捲影像00:49
april 27, 1994 montage factory worker using power lift moving metal tubes through factory warehouse interior / south africa - 合金 個影片檔及 b 捲影像00:41
april 27, 1994 factory warehouse interior stocked with metal tubing and strips / south africa - 合金 個影片檔及 b 捲影像00:14貨倉
construction workers erecting steel framework of dam and hydroelectric plant / united kingdom - 合金 個影片檔及 b 捲影像00:32
december 19, 2001 crane and construction worker lowering support beam into position at pentagon rebuilding site / arlington, virginia, united states - 合金 個影片檔及 b 捲影像00:17
december 19, 2001 cranes and equipment at pentagon construction site / arlington, virginia, united states - 合金 個影片檔及 b 捲影像00:22
december 19, 2001 montage support pillars and rebar at pentagon construction site / arlington, virginia, united states - 合金 個影片檔及 b 捲影像01:07
train riding along tracks, over bridge, and by signs on british railways / united kingdom - 合金 個影片檔及 b 捲影像00:47
workers operating a machine to ensure measurements are accurate and make alterations to the railway / united kingdom - 合金 個影片檔及 b 捲影像00:19
worker operating machines to secure the railway sleepers beneath the tracks / united kingdom - 合金 個影片檔及 b 捲影像00:25
steel rails for british railways being tested, loaded, and transported / united kingdom - 合金 個影片檔及 b 捲影像00:43
worker cutting and flash welding steel rails for british railways in the mill / united kingdom - 合金 個影片檔及 b 捲影像00:23
scientists producing, testing, and analyzing specific formulas of steel with scanning electron microscope / united kingdom - 合金 個影片檔及 b 捲影像00:34
scientists testing strength of steal clips using various methods / united kingdom - 合金 個影片檔及 b 捲影像00:43