1. When we buy it in the store, we can check whether its color is uniform, whether the surface is smooth and comfortable, whether its section is honeycomb-like, and whether there are local undulations and height differences. If we bend it by hand, it is not easily deformed and elastic. When the surface is tapped with a hand, the sound is crisp, which means that the PVC hose has strong toughness and good quality, while the inferior PVC hose is very brittle, and even cracks when it is gently broken.
2. Secondly, we can smell it closely to see if it has some pungent odor. If you can smell a pungent odor, it means that its PVC hose has poor environmental protection performance, and it is mostly made of inferior materials. Recommend everyone to buy. In order to ensure the environmental protection and durability of PVC hoses, it is recommended that you go to the local large building materials market or regular specialty stores to buy.