... -used in outdoor -surface trivalent chrome -water proof and dust proof Features: *strong anti-corrosion aluminium electronic amplifier enclosure*ADC1,ADC12,A380, ALSI9CU3 ... .Welcome your own design and drawing in stp,step,igs, dwg,dxf,pdf,jpeg,tiff,etc. strong anti-corrosion aluminum electronic amplifier enclosure ...