... Cummins Piston Cummins Engine Piston Piston Ring Piston Pin Inner Packing: Standard Outer Packing: Cartons ... Piston Material: ZLD108 ZLD103 Madle-124 2. Piston pin Material: 20Mn 20Cr 15CrNi6 15Cr5 20CrMo 20CrNiMo 3 ... ring inserting and casting in piston heads 4. Controlled expand steel plate inserting and ... 1RZ, 2L, 3L, 2RZ, 3RZ, 4K, 1Hz, 3VZ 4. MITSUBISHI: 4D30, 4D31, 4D31T, 4D32, 4D34, 4D40, 4D55 ...