Pa Ogasiti 7. chikondwerero cha zaka 16 za JUNRAY CO. chinali chachikulu mumzinda wa Qingdao. Zaka khumi zapitazo, Purezidenti He Chunlei adayambitsa kampani ya Junray ku China. Junray(Brand Yathu) ali ndi ntchito yapadera ...
Kuti muzindikire kutuluka kwa HEPA Fyuluta, imadziwika bwino kugwiritsa ntchito aerosol photometer poyesa. Lero, Titenga ZR-6012 Aerosol Photometer monga chitsanzo kuti tidziwitse mfundo yodziwira ...