both asphalt and concrete pavement in the express
way in the use of SMA or Superpave have strict requirement
on the aggregate grain shape, especially in the
basalt gravel content-Flake, but the former impact
crushing processing technology can not meet the
requirements, Hengchang metallurgical plant launched
VI series of vertical impact crusher for crushing
and shaping the screening process, which is widely
applied in national Yong-Xian SMA express way.