HEC Natrosol 250 Hbr Hhbr Equivalent Hydroxy Ethyl Cellulose Powder
Natrosol 250 Hhbr, H4br, Hbr Painting Additive HEC/ HEC, Natrosol 250, Ashland
Stable Thickeing, High Water-Retention Hydroxyethyl Cellulose HEC for Making Latex Paint