Ethyl cellulose hydrophilic po'o le hydrophobic Ethyl cellulose o se polymer synthetic lea e fa'aaogaina lautele i alamanuia eseese, e aofia ai vaila'au, mea'ai, ma tausiga patino. E lauiloa mo ana mea e sili ona lelei e fai ata tifaga, maualuga le fetaui ma isi mea, ma le tetee lelei i c ...
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