... degree 3. sun-proof surface 4. rock wool,fire door security doorSun-proof, Sound-proof, shock-proof, warmth preserved, anti ... -point lockWith second lockvisible hinges handles peephole Rubber seal Opening directioninward / outwardOpening degree180 degreesor 90-120 ... Infillinghoneycomb paperor Rock WoolOR Polyurethane(PU)--soundproof, insulatedFCY Q'TY2050x860x70mm, 324/40'HQ;2050x960x70mm, 300/40'HQ ...