1 indicates that polyethylene terephthalate (PET) raw materials, such as beverage bottles, mineral water bottles and other thin plastic packaging are mostly made of this material. This kind of product is not resistant to high temperature, can not store oil and wine, has short service life, and the service temperature is lower than 70 ℃. If it is not used properly, the product will deform after long-term use, and release harmful substances of phthalate, which can be processed into industrial products for secondary processing, and has certain value The value of recycling.

2表示高密度聚乙烯（HDPE）原料，常用于存放洗涤剂、洗发水、沐浴露等非可食用品，产品使用温度为100℃，硬度韧性都较高。

2 refers to high density polyethylene (HDPE) raw material, which is commonly used to store non edible products such as detergent, shampoo and shower gel. The product has high hardness and toughness at 100 ℃.

3表示聚氯乙烯（PVC）原料，水管常用的材质之一，使用温度随规整结构变化而变化，这种塑料制品在加工或高温时会产出有毒介质，一般不会作为食品包装。

3 refers to polyvinyl chloride (PVC) raw material, which is one of the commonly used materials for water pipes. The use temperature changes with the regular structure. This kind of plastic product will produce toxic medium when it is processed or at high temperature, and generally will not be used as food packaging.

4表示低密度聚乙烯（LDPE），塑料膜的主要材质，使用温度低，110℃会发生热熔，同时高温下遇到食用油也会溶出有害介质，形成人体不可分解物质，因此用塑料膜保鲜食品时，加热前一定要取下。

4 refers to low density polyethylene (LDPE), the main material of plastic film. It is used at low temperature, and will melt at 110 ℃. At the same time, it will dissolve harmful medium when encountering edible oil at high temperature, forming non decomposable substance for human body. Therefore, when using plastic film to keep food fresh, it must be removed before heating.

5表示聚丙烯（PP），一次性餐盒的常见材料，这种材质是少见的可耐高温的塑料产品，能够放在微波炉使用，不过在用微波炉加热前，要确定盖子的材质，如果是PE材质的不要把盖子也放进去。

5 refers to polypropylene (PP), a common material for disposable lunch boxes. This material is a rare high temperature resistant plastic product and can be used in microwave oven. However, before heating in microwave oven, the material of the cover should be determined. If it is made of PE, do not put the cover in.

6表示聚苯乙烯（PS），一次性餐具的主要材料，使用温度为-20~120℃之间，无味，因此适合做食品级容器，但是注意不要在微波炉内使用。

6 refers to polystyrene (PS), the main material of disposable tableware, the use temperature is between - 20 ~ 120 ℃, non-toxic and tasteless, so it is suitable for food grade containers, but be careful not to use in the microwave oven.

7是其他塑料原料制品的统称，下面用OTHER标示，如PC、PA等，水杯，尼龙衣物等均有涉及，要根据具体材质特点合理使用，避免释出有害物质损害身体。

7 is the general name of other plastic raw materials. It is marked with other below, such as PC, PA, water cup, nylon clothing, etc. it should be used reasonably according to the specific material characteristics to avoid releasing harmful substances to damage the body.

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