Chromium-plated liners: DL offers chrome-plated liners made from premium forged steel with the core plated by chrome. The Chromium-plated liners have hardening characteristics of 58 to 62 Rockwell C hardness.
Liners have Four types: premium chromium liners/ceramic liners/chromium-plated liners/ hardened liners
Premium Liners:made with a high chrome/iron sleeve or bi-metal sleeve into a forged steel hull.
Ceramic Liners:combinethe strength of a forged steel outer shell with the abrasion and corrosion resistance of a ceramic inner sleeve.provide zirconia sleeves as well as alumina sleeves.
Chromium-Plated Liners:made from premium forged steel with the core plated by chrome.
Hardened Liners:these liners are hardened and heat treated under strict quality control to a minimum of 60RChardness .Each liner is honed to a mirror-like finish for smooth.