Pr is a random copolymer polypropylene plastic, which is mainly used for pipes. From the use point of view, PE is the main water supply, and some HDPE can also be used for drainage (drainage on the same floor and siphon rainwater). And PPR is used for domestic use, and it is mostly used as a domestic water supply system. The maximum caliber of PPR is 160.PE can achieve a large caliber. PE is generally installed in the underground, mainly used in municipal engineering. PR is generally decorated in the home interior, belonging to the category of civil pipes.

　　PR material is water-based resin.

　　Waterborne resin PR plastic runways are widely paved in primary and secondary schools, kindergartens and other places with high requirements for environmental protection.

　　Because it is made of PolyResin resin as the core material, the first letter of the two words is called PR plastic track for short, which is different from the traditional oily PU track material with PolyUrathane as the film-forming material.

　　PR runway material can not only form a complete water-based runway system by itself, but also be widely used to renovate old PU runway and change it into a nontoxic, odorless and environmentally friendly runway because of its excellent compatibility with PU material.