... interface, all the intermediate part more than 5 years Manual Ceraminc Lined Knife Gate Valve Features:Excellent abrasion resistance, ... sealLow Maintenance costs,Disassembly and reusability Applicable medium:Bauxite slurry, asphalt, catalyst residue, mud cement, concrete slurry, mortar, paper pulp ... paraffin wax, slag, wood chips, ash, clay, coal, etc. Manual Ceraminc Lined Knife Gate Valve KAIERTONG