Ubwino ndi Mfundo Yogwirira Ntchito ya Stainless Steel Ball Valve
Ubwino wa zitsulo zosapanga dzimbiri zitsulo zazitsulo: 1. Zosavuta kugwiritsa ntchito, zofulumira kutsegula ndi kutseka, kuchokera kutseguka kwathunthu mpaka kutseka kwathunthu malinga ndi kuzungulira kwa madigiri 90, zosavuta kulamulira pa mtunda wautali. 2. Ili ndi dongosolo losavuta, voliyumu yaying'ono ndi kulemera kwake. 3. Ndi...
Onani zambiri