The PU pipeline pig produced by Yantai Zhengyuan Polyurethane Co., Ltd. is mainly made by pouring. The maximum diameter available is about 500mm and the hardness is 75A to 90A. Due to the characteristics of polyurethane, such as wear resistance, tear resistance, aging resistance, etc. The PU pipeline cleaning pig of Yantai Zhengyuan Polyurethane Co., Ltd. is a perfect product for multiple purposes. It can be reused after simple cleaning. Due to its elasticity and moderate hardness, the PU pipeline cleaning pig is flexible and friendly to the inner surface of the pipeline under cleaning, and firm and tough to the accessories.