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How to identify plastic product identification codes
by：Lisson
2021-04-07
The Plastics Industry Association has formulated the symbol code for the types of plastics used in plastic products. It is in the middle of the triangle composed of three arrows representing the cycle, and the number is added. They attach the triangular recycling mark to the plastic product and use the numbers 1 to 7 and English abbreviations to refer to the type of resin used in plastics. In this way, the identification of plastic varieties becomes simple and easy, and the recycling cost of technetium is greatly reduced. Many countries in the world nowadays have adopted this SPI logo scheme. China formulated almost the same labeling standards in 1996. The triangle is a recycling mark for plastic products, which is equivalent to a plastic identification card. The triangle formed by the three arrows means that the material of the bottle is 'recyclableThe number identification ranges from 1 to 7. Each number represents a type of material. If the product is made of several different materials, then the identification is its main material.
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