Daim Ntawv Thov Ntawm Hydroxyethyl Cellulose Hydroxyethyl Cellulose (HEC) pom muaj ntau daim ntawv thov thoob plaws ntau yam kev lag luam vim nws cov khoom tshwj xeeb, suav nrog thickening, dej tuav, film-forming, thiab stability-txhim yam ntxwv. Nov yog qee qhov kev siv ntawm HEC: 1. Paints a...
Nyeem ntxiv