... synthetic strenght and professional manufacturer 3,ISO9001 and CE Landfill HDPE geomembrane IntroductionProduct Features:1,It integrates permeation, inverse filter and ... one film Mpa0.50.60.81.01.21.41.6Landfill HDPE geomembrane No.Item Test Value0.75mm1.0 mm1.25 mm1. ... Stability (%) ±2 ISO9001, ISO14001, OHSAS18001 and CE certification Landfill HDPE geomembrane 1.5-2.5mm,ASTM standard, CE approved