1	Plastic strapping should have good toughness. If the strapping is broken repeatedly, it is easy to break if the toughness is not good. The pattern must be beautiful and avoid bias.
2	The quality of plastic strapping is generally white (other colors should be bright), because these are not easy to be mixed with old materials.
3	The straps should have gloss. Such straps are generally produced from full materials and have stable tension. If the straps are adulterated, the gloss will be greatly reduced.
4	The width error of the packing belt is generally plus or minus 0.3mm. This kind of packing belt is uniformly cut during production, and the quality will be relatively uniform, and there will be no ups and downs.
5	Some packing belts are made of new materials on the outside, with filling materials in the middle. As long as you cut and look at the cross section, you can see that the black hearts inside are of poor quality. The color of the straps: It's hard to say that the grades of straps are different. Transparent straps are currently very good straps. Its quality depends entirely on the purity of polypropylene. The higher the purity, the better the tension of the straps.

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