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• Sucking filtration groove
• Basin series
• PP polypropylene waste gas purifying tower
• Vaccum measurement metering tank
• Zwitterion exchanger
• Ion exchange water treatment system
• Graphite modified polypropylene tubular heat exchanger
• Graphite modified polypropylene falling film absorber
• RPP water-jet vaccum pump and vapour-water series-wound ejector
• JZJS Roots-water-ring vacuum pump
• Strengthened polypropylene pipeline, valve and filling