Valve Stem Caps

the part connected with the Piston Pin is called a connecting rod small head; the part connected with the crankshaft is called a connecting rod big head, and the connecting rod of the small head and the big head is called a connecting rod rod body The top end of the connecting rod are mostly thin-walled circular structure for reducing wear between the piston pin and the thin bronze bushing into the hole in the head. In the drilling head and bushing or slot milling, with the surface to...