*opening doorï¼?90 degreee bending treatment as bottom pictures shown. *openingï¼?Ul certificed electric lock opening *Opening Door's thichness: with 40mm fireproof plate *Wall thickness: 60 mm fireproof layer Fireproof time: 2 hours in factorys testing. *SS. plate decoration *Optional colorï¼?blackï¼?grey. *Inner spare paratsï¼?one blanket bolt for fireproof. Lock structuresï¼?three way pullingï¼?bolt of World lock . *openg angle: 183 degree.