Ko te Hydroxyethyl cellulose (HEC) he ma, he kowhai marama ranei, he kakara, he kikokore, he paura totoka ranei, he mea hanga mai i te miro mata, i te penupenu parakore ranei i ruia ki roto i te 30% wai kawakore, ka tangohia ka pehia i muri i te hawhe haora, Kootia tae noa ki te tauwehenga. o te wai kawakore ka tae ki te 1:2.8, ka kuru. Ko te prepa...
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