steel fire resistant door 1.cold-rolled steel&perlite 2.attractive perception 3.ISO9001 4.860/960/1150/1200*2050*50/60/70 steel fire resistant door 1) Material: cold-rolled steel2) Frame outer size (H x W):a) 2,050 x 860mmb) 1,970 x 860mmc) 2,050 x 900mmd) 1,970 x 900mme) 2,050 x 960mmf) 1,970 x 960mm3) Door panel thickness: 50mm /70mm4) Opening direction: inward / outward5) Lock handle position: ...