... FeatureSmoothly openingLug typeUnilateral forced sealLight weight, easy installationLow maintenance costsDisassembly and reusabilityApplicable medium: Bauxite slurry, asphalt, catalyst residue, mud cement, concrete ... , cement, paraffin wax, slag, wood chips, ash, clay, coal,etc. Stainless Steel Knife Gate Valve KAIERTONG