4 Inch Pvc Pipe Repair Coupling Hough Section Socket Connection

4 Inch Pvc Pipe Repair Coupling Hough Section Socket Connection Specification: Material Size(mm) Color Pressure Upvc 63-200 gary,others can be customized PN10&PN16 Description: 1, Healthy and non -toxic,bacterial neutral .conforming to drinking water standards , no heavy metal additives, would not be covered with dirt or contaminated by bacterium 2, Corrosion Resistant: resist chemical matters or electron chemical corrosion 3, Lower Installation Costs: light weight and ease