Hy-chrome mud pump liners
Made with a high chrome/iron sleeve or bi-metal sleeve into a forged steel hull, with shoulder/or(HP or Stopper), can withstand the highest hoope streeses, The RHC can be from 60-64

Ceraic liners
Cobine the strength of a forged steel outer sheel with the abrasion and corrosion resistance of a ceramic inner sleeve.

Chromium-plated liners
Made from premium forged steel with the coreplated by chrome. The chrome-plated liners have hardening characteristics of 58 to62 Rockwell C hardness