... of copper tube and aluminum sheet NBD-20 DC powered truck air conditioning Model NBD-20Cooling capacity2000WCompressor VoltageDC12V/24V/48V/72V/96VController ... . More cooling capacity, more cooling air.ISO9001/ TS16949/ QS9000/ CE/ ATP Certification. Sanden, Zexel, Danfoss, Good year, Gold-cooper, Spal, etc top ...