Jiangsu PP Round and Square Stock, Wholesale Price 【Jiangsu Jiayuan Pipe Valve Fitting Co., Ltd.】 Round and square pipes, also known as transition pipes or PP square pipes, are special pipe fittings with a round bottom and a square top. This design is commonly used in ventilation pipeline installation projects as it can effectively connect different-shaped pipe systems for smooth fluid transmission. High-quality Material: The round and square pipes are made of polypropylene (PP) with excellent properties such as acid and alkali resistance, corrosion prevention, odorless and non-toxic, and non-scaling. This allows them to be used in a variety of harsh environments over a long period while maintaining stable performance. Compact Structure: The unique round and square transition design makes the pipe connection more compact, reducing space occupancy and improving the overall aesthetics of the system. Easy to Install: PP material is lightweight and easy to install, significantly reducing project difficulty and costs. Additionally, its good tightness and the overall appearance after forming enhance the quality of workmanship. Diverse Specifications: Round and square pipes come in various sizes and can be customized according to customer requirements. Common specifications range from 325mm to 1020mm, but larger or smaller sizes can also be produced to meet specific needs.