... slag ,sand,and concrete,etc. Abrasion resistant pipe steel-corundum ceramic composite pipe to convey pulvarized coal and fly ash and ... part of the pipe is steel and inner part of is highly wear- resistant and anti-crrosion corundum ceramic (a-Al2O3 ... pipe. We can not only produe straight pipe, but also elbow, T, Y, reducer and so on. abrasion (erosion)resistant steel-ceramic composite pipe