RA Power Solutions has been successfully repairing heavy cast iron, aluminum, bronze, and cast steel components using the metal locking and metal stitching process. This is a cold process, and no heat is generated. For more details regarding crack repair of cylinder liners and MAN engine cylinder liners, please email us at [email protected] or call us at +91 9582647131. https://metalstitchinglocking.com/crack-repair-of-cylinder-liners-by-metal-locking-and-metal-stitching/