... 3) Certificate: ISO,CE,SONCAP High-quality Steel Door (ISO/CE/SONCAP)Main Material: High quality cold-rolled steel sheet & stainless ... Infills: Honeycomb or mineral wool. 4. Locks: Specialist security lock with more locking points. (alternative available) 5. ... size also available. (height*width*door leaf thickness) 10. Accessories: Hinges, lockset, handles, viewer(peephole), doorbell, rubber seal, ...