API JS400 Drilling Rig Mud Pump Special Piston For Ceramic Liner
Product Description
JS400-SPECIAL PISTON FOR CERAMIC LINER
1.Adopting structure and formula with independent intellectual property rights,the ceramic liner is produced by fine sintering,precision machining and special grinding.
2.The normal working pressure increases 5%-10%,reduce eccentric wear probability between piston and ceramic.the normal service life will not be less than 400 hours.
