... alkali &acidaaresisting, anticorrosion, insulating, innoxious, endurable for water pressure, agingaaresistant, easy to fix PVC pipe is ... widely used in many fields, such as water supply project, water discharge in building, farmland drip or spray irrigation, ... alkali &acid—resisting, anticorrosion, insulating, innoxious, endurable for water pressure, aging—resistant, easy to fix and has good rigidity ...