How to judge the quality of the hose crimping machine

How to judge the quality of the hose crimped by the tube crimping machine

When judging the quality of the hose crimped by the tube crimping machine, please pay attention to the following points:
1. Check whether the surface is smooth and flat, whether there are bubbles, bulges, sponges, sand holes, etc.;
2. Bend it by hand to see if there are cracks;
3. Check whether the steel wire reinforcement layer is arranged regularly;
4. Check the cross section, whether the inner hole and steel wire layer are round, and whether the thickness of the inner and outer rubber layers is uniform;
5. Cut the inner and outer rubber with fingernails or a knife to see if they are strong;
6. Use your nose to smell whether the smell of the inner and outer rubber is pungent;
7. Check the printing of the tube to see if there are trademarks, factory names and other information.