Obere njupụta polyethylene (LDPE) bụ polymerized ethylene dị ka polymerization monomer, peroxide dị ka onye mmalite, na thermoplastic resin nwetara site free radical polymerization mmeghachi omume, molekụla arọ bụ n'ozuzu na 100000 ~ 500000, na njupụta bụ 0.91 ~ 0.93g / cm3, bụ kacha dị iche iche nke ...
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