Hauj lwm lawm
Kev tsis
Qhov seem los ntawm cov distillation ntawm cov zaub roj cov roj fatty acids lossis saponified, cov roj zaub cov roj fatty acids. Tsim los ntawm kev kub siab esters ntawm cov roj fatty acids, cov khoom nruab nrab ntawm cov zaub hauv keeb kwm muaj tsawg dua ntawm cov roj dawb.
Cim npe nrov: bioasphalt, Tuam Tshoj, tuam ntxhab, tus nqi, quotation, dawb qauv
