Xov Xwm Kev Lag Luam
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Cov Hnab Twg Zoo Tshaj Plaws Rau Kev Khov Khoom Noj?
Hom Hnab Rau Khov 1. Cov Hnab Khoom Siv PE Cov hnab khoom siv PE (polyethylene) yog qhov kev xaiv zoo tshaj plaws rau kev khov zaub mov vim lawv qhov kev sib khi zoo heev thiab ruaj khov. Lawv tiv thaiv tau qhov dej noo poob thiab lub tub yees kub hnyiab. Cov hnab PE ziplock yooj yim siv thiab ua kom zaub mov tshiab ntev dua. Qhov Zoo: Muaj zog s...Nyeem ntxiv -
Qhov zoo ntawm lub hnab PE yog dab tsi?
Lub hnab yas PE yog luv rau polyethylene. Nws yog cov thermoplastic resin polymerized los ntawm ethylene. Polyethylene tsis muaj ntxhiab thiab zoo li quav ciab. Nws muaj kev tiv taus kub qis zoo heev (qhov kub qis siv tau txog -70 ~ -100 ℃), kev ruaj khov tshuaj zoo, tiv taus...Nyeem ntxiv
