1. Dab tsi yog daim ntawv thov tseem ceeb ntawm hydroxypropyl methylcellulose (HPMC)? Teb: HPMC yog dav siv nyob rau hauv cov khoom siv, coatings, hluavtaws resins, ceramics, tshuaj, khoom noj khoom haus, textiles, ua liaj ua teb, tshuaj pleev ib ce, luam yeeb thiab lwm yam lag luam. HPMC tuaj yeem muab faib ua qib kev tsim kho, zaub mov g ...
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