Identification of PVC steel pipe
In most cases, there is no detection tool and testing conditions? We can according to the visual, olfactory, tactile and other sensory rough identification of PVC steel tube quality. observe the lumen is rules? Wall thickness is uniform. Good quality PVC steel tube cavity and the outer edge of the standard round? Ring wall distribution evenly. To diameter 89mm? Wall thickness of 7mm PVC ste.........