Lus Qhia luv luv rau Rosin

Rosin yog hom roj ntoo cob hauv tsev neeg ntoo thuv, feem ntau yog tsim los ntawm C19H29COOH. Muab faib ua peb hom: cob rosin, ntoo rosin, thiab ntab roj rosin. Feem ntau siv los ntawm cov nqaij qaib slaughterers ua tus neeg sawv cev depilatory. Rosin nws tus kheej tsis muaj tshuaj lom rau tib neeg lub cev, tab sis nws feem ntau muaj cov hlau hnyav xws li cov hlau lead thiab cov tshuaj lom. Tsis tas li ntawd, kev lag luam yog greedy rau cov nqi qis dua rov siv dua, thiab cov peroxide uas tsim los ntawm rosin oxidation cuam tshuam rau tib neeg kev noj qab haus huv, ua rau nws muaj kev tswj hwm cov khoom.