PE是聚乙烯塑料，最基礎的一種塑料，塑料袋、保鮮膜等都是PE,HDPE是一種結晶度高、非極性的熱塑性樹脂。原態HDPE的外表呈乳白色，在微薄截面呈一定程度的半透明狀。PE具有優良的耐大多數生活和工業用化學品的特性。

PE is the most basic of polyethylene plastic, a plastic, plastic bags, cling film is PE, HDPE is a high degree of crystallinity, non-polar thermoplastic resin. The original state HDPE appearance is milky white, in the small section are somewhat translucent. PE has good resistance to most living and industrial chemical characteristics.

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