systemair 201710 HELLA Diffusers Buku Logwiritsa Ntchito
Buku la Ogwiritsa Ntchito la Okutobala 2017 la 201710 HELLA Diffusers limaphatikizapo zambiri zamitundu ya HELLA-1 mpaka HELLA-4, PB-HELLA ndi zina zambiri. Pezani ukadaulo ndi miyeso yachitsanzo chilichonse muupangiri wothandiza wa IMOS-Systemair.