... : Diameter mmSG50SG63SG75SG80SG110SG160SG200structure typesinglesinglesinglesingle /doubleSingle/doublesingle/doublesingle/doubleMaterial PE,PP,PVC,PETPE,PP,PVCReference diameter mm41556771100148182Feed water area cm2/m24242424808080Local punched Feed ... , heat resistance, and corrosion resistance. Product pictures In the corrugated tube outsourcing a layer of geotextile, prevent soil plugging holes ...