... beauty, lasting durability, timeless performance in single or double leaf. double leaf steel fire door 1. Material:Rust-proof Galvanized Plate. ... Thickness of door frame & door leaf: 1.2 & 0.8mm.2. Checker: Stainless steel, steel, ... locking points. 5. Design:Various choices6. Colour: Various choices7. Door leaf thickness: 50mm, 70mm, 90mm8. Size: 2050*950*240 mm ( ...