Nyib nyob hauv Zhengzhou, Henan County - lub cais kav tswj, Xyoo xyoo 1984, twb ua rau peb lub nroog tswvyim tswv. Muaj muaj 4 xyoos twb muaj ib qho nrhiav kev siv tswvyim, peb thiaj nrhiav tau li no: ▸ Semi ▸ Lawv npau: Facial / Napkin/Toilet phau ▸ Paper tube & sawv fab teeb ▸ Kraft / Corrugated pab pab tshwm Tej tsav