人和国国家标•78/T18836一2017代苔GB/T1883620oz风管送风式空调(热泵)机组Ductedair“'nditi``ning(heatpump)uni..62017•0今12发布中华...
GB T 18836-2017 风管送风式空调(热泵)机组-email.pdf
GB T 18836-2017 风管送风式空调(热泵)机组.pdf