Technical Specifications : Door leaf and Door frame made of 1.5mm sheet There are two spring hinges on leaf Metal surfaces is polished with electrostatic powder paint with fire on 2200 C. Door frame covers whole wall Optionally half frame can be manufactured Foam proof joint is used in all doors Salient Features of Shaft Doors : Utmost safety and security Easy installation Robust construction Less maintenance Rust proof & Longer service life High Strength & Withstand extreme climatic condition