Malingaliro a kampani Nanjing Tong Chang Environment Tech Co., Ltd.
Pogwira ntchito ndi gulu lotsogola la R&D kunyumba ndi kunja, TongChang imapanga ma patent angapo aukadaulo.Ndikuyembekeza kukhazikitsa ubale wautali wa mgwirizano ndi inu.
LinkedIn:https://www.linkedin.com/company nanjing-blue-sky-filter
Twitter:https://twitter.com/BlueSkyFilter
Youtube: https://www.youtube.com/channel/UC5Khydiru5QdeYmnzFjuHAA
