Cov khob ntawv tau muab faib ua ib zaug -sab PE-coated thiab ob lub-sab PE-coated khob.
Ib leeg-sab PE-coated ntawv khob: khob ua los ntawm ntawv nrog PE (polyethylene) txheej ntawm ib sab yog hu ua ib leeg-PE khob (feem ntau cov khob kev lag luam thiab khob kev tshaj tawm poob rau hauv qeb no). Lawv yog tus cwj pwm los ntawm PE txheej txheej ntawm sab hauv uas tuav cov kua.
Muab ob npaug rau-sab PE-coated ntawv khob: khob ua los ntawm ntawv nrog PE txheej ntawm ob sab yog hu ua ob -PE khob. Lawv yog cov yam ntxwv los ntawm PE txheej ntawm ob sab hauv thiab sab nrauv.
Daim ntawv khob loj: khob qhov ntau thiab tsawg yog ntsuas hauv ooj (oz). Cov piv txwv uas pom hauv khw muaj xws li 9 oz, 6.5 oz, thiab 7 oz khob.
Ounce (oz): Lub ounce yog ib chav ntawm qhov hnyav; Nyob rau hauv cov ntsiab lus no, 1 ooj sib haum rau qhov hnyav ntawm 28.34 milliliters dej.
Qhov no tuaj yeem qhia tau tias: 1 oz=28.34 ml=28.34 g.
Cov hom eco-cov khob ntawv tus phooj ywg suav nrog cov khob uas siv tau pov tseg, khob tshaj tawm, khob txais tos, khob dej haus, khob mis nyuj haus, thiab khob tasting.