HDPE pipes have been widely used in all fields of our life, the mainly reason is that it has unique futures and better performance than traditional pipes. This passage introduce some points of its characteristics: convenient transportation, no leakage, good low temperature impact resistance, chemical resistance, wear resistance, good flexibility, small water flow resistance, ductility and toughness and multiple construction methods.

When the krah pipes are produced, we find that not all of them are perfect. Some of them will have different levels of defects. It’s no doubt that the manufactured krah pipes will be checked and the unqualified krah pipes will be eliminated at last, but do you know what factors cause their defects.

Plastics can be divided into two types, thermoset polymers and thermoplastics. Its main feature is that the thermosetting polymer can only be melted and molded for one time, and will become solid after cooling. While Thermoplastics can be melted and molded for many times, which means they can be recycled continuously.

Both polypropylene and PVC are the most commonly used plastics in our daily life or pipeline construction. They share some common characteristics, but there are some significant differences. First, both polyethylene and polyvinyl chloride are plastics formed by free radical polymerization.