У вашего броузера проблема в совместимости с HTML5
(Roll forming: http://youtu.be/k6iODHla6qY)
This film takes you through the processes within a hot rolling mill. You'll get to see the different stages all the way from heating to cooling.
Filmed at SSAB in Borlänge, Sweden (http://www.ssab.com)
For more information about courses visit our website http://du.se/en/Education/Subject-list/Material-Science/
Watch this film about Roll forming to find out what can be done with the finished strips! http://youtu.be/k6iODHla6qY