The steel that is used in the production of this material should be very plastic, in order to give the profile the correct forms. But on the other hand, steel should be stiff so that this material can be safely used on the roof.
The steel that is used in the production of this material should be very plastic, in order to give the profile the correct forms. But on the other hand, steel should be stiff so that this material can be safely used on the roof.
