Double glazed T30 or T90 doors, general building inspectorate certificate issued and monitored by
Deutsches Institut für Bautechnik (German Institute for Building Technology) in Berlin.
Standard steel galvanised and primed (powder coated), rebate on three sides, with thick rebate similar to
domestic door, corner frame with seal, fire-proof glazing. Many standard sizes ex stock. Individual special
sizes. Permitted dimensions see possible features. Also available in stainless steel.
