Nanjing Tong Chang Environment Tech Co., Ltd.
Kanthi nggarap tim R&D ing omah lan ing luar negeri, TongChang ngembangake sawetara paten teknis.Katon nerusake kanggo netepake hubungan kerjasama long term karo sampeyan.
LinkedIn:https://www.linkedin.com/company nanjing-blue-sky-filter
Twitter:https://twitter.com/BlueSkyFilter
Youtube: https://www.youtube.com/channel/UC5Khydiru5QdeYmnzFjuHAA
