The semi-truck disc brake shaft has fast heat dissipation, open design, high carbon alloy brake disc, anti-cracking performance, fast general heat dissipation, and is not prone to thermal recession during frequent continuous braking. Compared with the tra
◆Features grooving, handling and carious line drilling on turned cylindrical, tapered, curved, end and tangential surfaces.◆Applicable to the use of auto and motorcycle parts, valves, power tools, hardware instruments and other industries, can be a variet