net cover flap wheelpartical size:40 50 60 80 100 120 ... .2inches,5inches,6inches,7inchesdrag cover materials:92-7,92-4tin,net coverusage: the grinding, polishing, deburring, oxide layer, derusting of ... production.characteristics: safety, environmental protection, high temperature resistance, corrosion resistance, chemical stability, high strength, good toughness, good self-sharpening,above96%efficiency ...