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        high speed double wall corrugated pipe line
        ?HDPE/PPΦ800-Φ1200(ID)/Φ1200(ID)-Φ1800(OD)DOUBLE WALL CORUGATED PIPE LINE
        HDPE /PP Φ500-Φ800/Φ1000(ID)double wall corrugated pipe
        HDPE /PPΦ200-Φ400/Φ500(ID)double wall corrugated pipe extrusion line
        HDPE /PPΦ100-Φ250 (OD) Single/Double wall corrugated pipe production line
        HDPE/PP Φ63-Φ160 (OD) Single/Double wall corrugated pipe
        HDPE/PP/PVCΦ16-Φ50(OD)single/double wall corrugated pipe extrusion line
        SBZ500 S high speed double wall corrugated pipe extrusion line
        PVC Φ500-Φ1200(OD)double wall corrugated pipe extrusion line
        PVCΦ110-Φ250/Φ200-Φ500/Φ200-Φ630((OD)double wall corrugated pipe extrusion line
        PVC Φ63-Φ160(OD)single/double wall corrugated pipe extrusion line
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