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