1, Bi-metal liner mud pump 2, available for F series mud pumps 3, great hardness 4, High Chromium content Bimetal mud pump liner for F series mud pump * The sleeve is made of ... ,160mm,170mm,180mm we can produce all kinds of Liners for mud pump 12P-160,10P-130,FB-1600 and so on.Our ... strictly to a hardness of HRC≥61-64. bi-metal mud pump liner