Nūhou ʻOihana
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He aha nā ʻeke ʻoi aku ka maikaʻi no ka meaʻai hau?
Nā ʻano o nā ʻeke paʻukū 1. ʻeke ʻeke ʻeke PE (polyethylene) kahi koho nui no ka meaʻai maloʻo ma muli o ko lākou sila maikaʻi ʻana a me ka lōʻihi. Hoʻopaʻa maikaʻi lākou i ka nalowale o ka makū a me ke ahi paʻukū. Hiki i nā ʻeke ziplock PE ke hoʻohana a mālama i ka meaʻai no ka lōʻihi. Pono: ikaika s...Heluhelu hou aku -
He aha ka pōmaikaʻi o ka ʻeke PE?
He pōkole ka ʻeke plastik PE no ka polyethylene. He resin thermoplastic i polymerized mai ka ethylene. ʻAʻohe ʻala o ka polyethylene a ua like ia me ka wax. Loaʻa iā ia ke kūpaʻa haʻahaʻa haʻahaʻa haʻahaʻa (hiki ke hoʻohana ʻia ka mahana haʻahaʻa haʻahaʻa -70 ~ -100 ℃), kūpaʻa kemika maikaʻi, resis ...Heluhelu hou aku
