I-Donsen yasungulwa ngo-1996, etholakala e-NINGBO lapho kukhona khona idolobha elichweba lomhlaba wonke elithuthukile nelihle. Njengoba sinesipiliyoni seminyaka engaphezu kwengu-20 kulo mkhakha, singomunye wabakhiqizi abangochwepheshe kakhulu ekukhiqizeni amapayipi epulasitiki okuhambisa amanzi kanye nohlelo lokunisela.

Imikhiqizo yethu eyinhloko amapayipi nezihlanganisi ze-PP-R, izihlanganisi zokucindezela ze-PP, amapayipi nezihlanganisi ze-C-PVC, amapayipi nezihlanganisi ze-U-PVC, amapayipi nezihlanganisi ze-PE, amapayipi okushisa phansi e-PE-RT, izikhunta zepulasitiki nazo zonke izinhlobo zamavalvu epulasitiki. Izibonelo: ivalvu ye-PVC, ivalvu ye-PPR, ivalvu ye-C-PVC, ivalvu ye-BRASS.