I-Nanjing Tongchang Environment Tech Co., Ltd. yasekwa kwi-2018, e-Nanjing, kwiPhondo laseJiangSu, elikwiSangqa sezoQoqosho saseShanghai.Ishishini lethu eliphambili kukuvelisa kunye nokuthengiswa kwezixhobo zokucoca umoya kunye namanzi kunye nezixhobo ezixhasayo.