RA Power Solutions repairs cracked cast metal or aluminum components using metal stitching and the metal locking technique. We offer permanent crack repair solutions without using the heat associated with the welding process. For more information, please email us at [email protected] or call us at +91 9582647131. https://marineengine.in/repair-of-crack-cast-metal-by-metal-stitching-services-cast-iron-engine-block-crack-repair/