... wheel), (9) block: straight line type: diameter is 560mm8 block materials: stainless steel,ZG45 - 55,working surface,tungsten carbide spraying alloy powder, hardness more ... , free replacement.10 block cooling way: inner by slit type water-cooling, The outer cooled by ring airmould box adopts ... be adjusted universally to ensure the angle of wire drawing straight line type continuous wire drawing machine