Ceramic Liners
Outer sleeve: forged steel with abrasion resistance.
Inner sleeve: ceramic (Zirconia-ZrO3) with corrosion resistance, high hardness, smooth finishing & best impact strength.
Phase transformation toughen technology: high wear-resistance, erosion-resistance, high pressure-resistance.
High temperature-resistance.
Less piston wear.
Working life: up to 4000 hours with the good mud condition.