inf o@ailmining .c om inf o@ailmining .c om C on v e y or T unnels and O v er c asts O ur pr oducts hav e co v er ed a lot of gr ound o n these cr itic al ar ter ial applic atio ns. A ccor ding to the r equir ed siz e and specifc atio ns, o v er c asts and co n v e y or tunnels c an be ma de f r o m var ious shape pr ofles in Bolt-A-P late ® or Corr ugated S teel P ipe . In so me c ases, o v er c asts c an incor por ate utilidor-t y pe passag es to ser v e double dut y . D r ainage AI L MI NI NG of ers a ful l r ang e of Gal vaniz ed, Aluminiz ed T y pe 2 or P ol y mer-L aminated Corr ugated S teel P ipe f or vir tual l y an y dr ainag e r equir ement. In a dditio n, w e c an suppl y al l of the necessar y elbo ws, couplings and a ccess por t a ccessor ies. 9