Metal stitching, also known as metal locking, is a cold repair method used to fix cracks in cast iron, steel, aluminum, and bronze parts without heat or distortion. For more details regarding crankshaft grinding repair, please email us at [email protected] or call us at +91 9582647131. https://marineengine.in/what-is-metal-stitching-and-metal-locking-a-trusted-cold-repair-technique-ra-power-solutions/