CAS:9004-65-3 Hydroxypropyl Methylcellulose (HPMC) or hypromellose are water soluble methyl cellulose ether,which are widely used in construction,

CAS:9004-65-3 Hydroxypropyl Methylcellulose (HPMC) or hypromellose are water soluble methyl cellulose ether,which are widely used in construction,