... MaterialA3 steelShell thickness2.0mmSurface handleImport paintOpen methodRead card, remote control ,manual buttonRemote control distance10-60mWeight of ... antirust for one yearOperation methodsReading card, remote control, manual buttonWithout remote controlShell thicknessCan be up to 2. ... steel which is shaped by 13 process flow. Without fading ,waterproofing, not rusty, durable.3.high ...