Tic ki sodium sulfide i gang tic tye ki jami mapol ma rwate. I ka tic me rangi, lutic gi tiyo ki ruk ma pe twero balo jami pien sodium sulfide gonyo yamo ma kelo two i lyeto ma malo. Kabedo ma ki yubu iye pii ma obale pol kare tiyo kwede me kelo jami ma pek, ma mito ni ki bed ki gwok maber i kom rwom me miyo pii ki keto jami ma gengo pii ni. I ka yubu papara, ma ki tiyo kwede me miyo yat bedo yom, kabedo ma ki tiyo iye omyera ki gwok ma otwo, ki jami ma gengo pii i ngom ki lanyut ma calo "Pe ki yer pii ma ki tiyo kwede" ma ki keto i kom cel.

Cwalo jami ki i dog nam me Qingdao, dog nam me Tianjin, ki dog nam me Shanghai, ki yoo maber me cwalo jami ma ki lwongo ni sodium sulfide ma mako dog nam madongo i wilobo weny. Dii kany me nongo kony maber.