1,Take a look at the single-layer thickness of warning tape. Some wholesalers are constantly demanding lower prices in order to reduce prices. As a result, the market is full of fake goods, such as reducing the thickness of single-layer tape, resulting in a reduction in the tensile strength of warning tape. It's easy to break.

2, second to see the warning tape PVC material is good or bad, normally speaking, high quality PVC material elasticity. If you use a slightly worse warning tape, many people on the surface are unaware of it, but if you use the warning tape to pull the warning tape, it is easy to find that the warning tape is white and has no elasticity. This is the poor performance of PVC materials.

3, to see whether the color printed on the surface of warning tape is bright, some warning tape manufacturers used low-quality ink to print warning tape in order to reduce costs, resulting in the warning tape color is not obvious, the color appears relatively dim. Whether the glue of the tape has a strong odor, this is also one of the manifestations of shoddy goods.