Ƴeewndogol kalite ina jeyaa e golle Liwei Chemical, tawa ina waɗi porotokolle tiiɗɗe, jowitiiɗe e kala tolno gila e ƴettugol geɗe mbaylaandi haa e yettinde geɗe gaadoraaɗe. Wonande PG, PO, SM, e PGE, min mbaɗata ko jarribooji tiiɗɗi e dow tolnooji winndereeji (yeru, USP, EP, ASTM) ngam tabitinde koolondiral e laaɓal, ɓuuɓri, e darnde.

Goomu amen kalite ina huutoroo peeje ƴeewndorɗe e sahaa peewnugol ngam yiytude prompt. Kala batte ina waɗa ƴeewndorɗe tati—e gollotooɓe peewnugol, ƴeewooɓe kalite, e laboratuwaaruuji goɗɗi—ngam tabitinde ɗooftaare,ngam mahde hoolaare e hoolaare geɗe men.