design
for
a
beneficiation
pnt!
you
are
not
jt
pnng
to
sell
railway
balst，
separate
the
high-purity
artz
and
iron
ore
ncentrate”
（我的天……这……这是一座选矿厂的初步设计！你们不只是打算卖铁路道砟，你们还打算分离提纯高纯度石英和铁精矿？）