... ISO14001 PE pipe/HDPE pipeFeatures:Applications: water supply, industrial liquids transportation and sewage treatmentConnection: ... /T13663-2000Certification: ISO9001, ISO14001, OHSAS18001Applications: water supply, industrial liquids transportation and sewage treatmentAdvantages:Non-toxic ... flanged jointApplications: water supply, industrial liquids transportation, sewage treatment and gas supply