... seams,rust,paint,scale. Applying of industrial brushes, mainly aspects as below:1 Rough machining of surface(polish, pull rough, rust clearance)2 Clear ... of surface (dirt reduce, oil relieve)3 ... steel wire: Φ0.22, 0.30, 0.35, 0.50mm,d) B:Brass wire,e) ST: Knotted steel wire: Φ0.35 ...