Coal washing screen filter belt ISO 9001:2008 Certified management system by SGS Coal washing screen filter beltISO 9001:2008 Certified management system by SGS Polyester monofilament filter belt for belt pressTypeDiameter mmDensity yarn /cmm3/m2h permeabilitymesh/ inchUsageWarpWeft WarpWeftWJW20506030.50.620.5±0.55.5±0.5230052for sludge dewatering of environment protectionWJW20508030.50.820.5±0. ...