Rosin muaj ntau yam siv

Rosin tuaj yeem tau txais los ntawm ntoo thuv zoo li tsob ntoo thoob plaws ntiaj teb, tshwj xeeb tshaj yog los ntawm Pinus palustris, Pinus caribaea, thiab Pinus taeda pom nyob rau sab qab teb Tebchaws Meskas. Txiav qhov nyob rau hauv cov ntoo trunks kom distilled thiab extract siab viscosity secretions hu ua cov pos hniav yog li. Cov kua dej tsis haum no yog turpentine; Cov tawv tawv uas tseem tshuav yog hu ua rosin. Txawm hais tias rosin, ua ib feem ntawm cov gloss thiab xim, tsis txaus siab, nws yeej ib txwm siv los ua ib qho dopant rau gloss thiab pigment vim yog ib qho ntawm cov khoom siv pheej yig tshaj plaws. Tsis tas li ntawd, rosin muaj ntau lwm yam kev siv hauv kev kos duab, xws li kev sib txuas, kev sib khi, thiab lwm yam khoom siv tshuab. Rosin kuj tseem hu ua colophony thiab Greek suab.