a) Constructed in telescopic from b) Connected boards with U shaped steel chute c) All the hardware on the door is plated with chrome. d) Adopted self-returned hinges which are installed in a hidden way e) Adjustable door-chain, 150 opening for example f) Invisible door-lock and Coat Hanger & Rubber Buffer Strip can be attached. Application:Airport, Hospital, Office Complex, Recreation Center, Shopping Mall etcPacking:In bulk or according to clients' request producing area:China payment:TT or L/C