I-Donsen yasungulwa ngo-1996, etholakala e-NINGBO lapho kukhona idolobha eliyitheku lamazwe ngamazwe elithuthukile nelihle. Njengoba sinesipiliyoni seminyaka engaphezu kweyi-10 kulo mkhakha, singomunye wabakhiqizi abangochwepheshe abakhethekile ekukhiqizeni amapayipi epulasitiki okuphakelwa kwamanzi nohlelo lokunisela.

Imikhiqizo yethu eyinhloko amapayipi nokufakwa kwe-PP-R, okokufakwa kokucindezela kwe-PP, amapayipi nokufakwa kwe-C-PVC, amapayipi nokufakwa kwe-U-PVC, amapayipi okushisa aphansi e-PE-RT, isikhunta sepulasitiki nazo zonke izinhlobo zamavalvu epulasitiki. Izibonelo: I-valve ye-PVC, i-valve ye-PPR, i-valve ye-C-PVC, i-valve ye-BRASS.