Tender For bid to ras corrigendum : providing of annual maintenance service - desktops, laptops and peripherals - desktop pc; hp dell lenovo etc,annual maintenance service - desktops, laptops and peripherals - printer (monochrome , laser , composite cartridge ); hp brother etc,annual maintenance service - desktops, laptops and peripherals - multifunction printer (monochrome , laser , composite cartridge, mid range); hp canon etc,annual maintenance service - desktops, laptops and peripherals - multi-function printer (colour , laser , composite cartridge, mid range); hp brother etc,annual maintenance service - desktops, laptops and peripherals - all in one pc; hp dell lenovo etc,annual maintenance service - desktops, laptops and peripherals - all in one pc; apple,annual maintenance service - desktops, laptops and peripherals - scanner; hp