wear resisting pipe of conveying pulvarised coal ,fly ash,mine dust,metallurgy slag ,sand,and ... resisting pipe1. steel-corundum ceramic composite pipe for thermol power plant, cement plant, aluminum factory, iron & steel works , mining, metaullurg ... casting process are used for coal fired power plant, steel and iron metallurgy plant,cement plant,coal washing & selecting plant and so on. abrasion ( ...