Nanjing Tong Chang Environment Tech Co., Ltd.
Los ntawm kev ua hauj lwm nrog cov thawj coj R & D pab neeg hauv tsev thiab txawv teb chaws, TongChang tsim ib tug xov tooj ntawm kev patents.Cia siab tias yuav tsim kom muaj kev sib koom tes ntev nrog koj.
LinkedIn:https://www.linkedin.com/company nanjing-blue-sky-filter
Twitter:https://twitter.com/BlueSkyFilter
Youtube: https://www.youtube.com/channel/UC5Khydiru5QdeYmnzFjuHAA
