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Development history of plastics
Development history of plastics
Jan 05, 2024

In 1845, sainberg, a chemist living in Basel, northwest Switzerland, accidentally encountered the concentrated nitric acid and concentrated nitric acid on the table when doing an experiment at home. He hurriedly picked up his wife‘s cloth apron to wipe th...

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  • The development prospect of vacuum packaging is very good
    The development prospect of vacuum packaging is very good
    Jan 05, 2024

    Vacuum bag, whose English name is foodbag, is one of the composite food bags. The main material is PE film or CPP film whose inner material must be completely new, and the outer layer is nylon (NY). Nylon has strong tensile force and barrier. PE can fully...

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