... structure, flexible opening, security vault door:The vault door has beautiful appearance of stainless steel, firm structure, flexible opening, security ... Door leaf structure from outside to inside is the following : the stainless steel plate which is 1 mm(1Cr18Ni9Ti), 8 ... , 20mm rear end plate ,covered by the stainless steel .a set of the luxury stainless steel barrier door inside with high-class anti ...