Of course, PE tarpaulin manufacturers must strictly control each processing procedure. What are the requirements for sewing? Pay attention to judging the latitude and longitude density of the tarpaulin. The higher the density, the higher the strength of the tarpaulin and the better the quality. The quality of the tarpaulin is judged by observing the appearance of the tarpaulin. The specific operation method is to take a tarpaulin and see its roughness. The rougher the surface of the tarpaulin, the worse the quality. You can also try the softness of the tarpaulin by hand. It is also a very useful method to judge the quality from the material. Pay attention to the double stitch length of the rope pressing cloth. The distance between the two stitches near the pressing rope should not be less than 45 mm. The middle of the pressing rope cloth should be properly arched to facilitate the passage of the pressing rope. mm. In addition, the sewing of the tarpaulin should be straight, without broken threads and floating threads, and the number of threads at the starting and ending points should not be less than 3 stitches. Each reinforcing rib should be welded with three pieces of rope cloth evenly, and the middle of the rope cloth should be properly arched to facilitate the passage of the waist rope.
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