CHROME PLATED PISTON ROD DETAIL • MATERIAL: CK 45• TOLERANCE OD: F7• ROUGHNESS: RA=0.2 Mic• RT- 1.6Mic / 2mic• STRAITNESS: 0.25mm/Mtr• OVALITY- HALF OF TOLERANCE• LOBBING-1/3 OF TOLERANCE• SALT SPRAY LIFE 200Hrs• CROME THICKNESS: 20 TO 30 MICRON