The range of plastic products is very wide. Most of us are in contact with plastic bags, and the classification of plastic bags is thousands of kinds, which is closely related to our daily life. Among the types of plastic bags, vest bags (vest bags) are commonly seen and used by us. Plastic vest bags are widely used in shopping malls, vegetable markets, or community convenience stores. Specifically, what are the application scopes of such bags?

1、大型购物袋。当我们在大的和购物的时候，在结账的时候基本都会使用到背心式购物袋袋，大型购物场所的背心塑料袋，其材质通常为可降解或者标加厚型，质量是属于中上乘。购物袋通常分为大中种不同尺寸，可以根据消费者购买商品的多少来选择合适大小的塑料袋，而这类袋子是要收费的，在0.1元~0.5元之间。一般情况下，购物背心袋上面都会印刷设计的图案，的logo、地址以及宣传语等等。

1. Large shopping bags. When we are shopping in large shopping malls, we usually use vest type shopping bags when we check out. Vest plastic bags in large shopping malls are usually made of degradable or standard thickened materials, and the quality is medium to high. Shopping bags are usually divided into large and medium-sized plastic bags of different sizes, which can be selected according to the number of goods purchased by consumers, and such bags are charged, ranging from 0.1 yuan to 0.5 yuan. In general, the shopping vest bag will be printed with the design pattern, the logo, address and slogan of the shopping mall, etc.

2、市场通用袋。在以农贸市场为主所使用的背心塑料袋，都是使用普通材质所制作而成的，这些袋子偏薄，颜色种类多，其质量是属于低下的。

2. Market bag. The vest plastic bags mainly used in the farmers' market are made of ordinary materials. These bags are thin and have many kinds of colors. Their quality is low.

3、广告类背心袋。经常有房地产公司、企事业单位定做背心袋作为广告礼品派发，从而营销的目的。这类袋子要求质量高，印刷精美，方便大众，亦夺人眼球，一举两得。 综合而言，塑料背心袋的主要作用是方便购物，虽然简单，用途很广。

3. Advertising vest bag. There are often real estate companies, enterprises and institutions to customize vest bags as advertising gifts for distribution, so as to achieve the purpose of marketing. This kind of bag requires high quality, exquisite printing, convenient for the public and eye-catching, killing two birds with one stone. Overall, the main function of plastic vest bag is to facilitate shopping. Although it is simple, it has a wide range of uses.

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