... room with sliding door 1. Bitzer compressor condensing unit 2. electrical control box sandwich panel cold room with sliding door 1. ... key to assemble and disassembleType of doorhinge door, convex door, sliding doorTemp.of room-45~+20 degree, ... door(concrete construction building/steel construction building)Voltage220V/50HZ, 220V/60HZ, 380V/50HZ optional sandwich panel cold room with sliding door ...