RA Power Solutions repairs cracks utilizing the lock and stitch method, which doesn't use heat. Metal stitching is the best way to repair critical cast iron parts, as it prevents misalignment and shrinkage. For more details regarding cast iron repair, please email us at [email protected], [email protected], or call us at +91 9582647131. https://marineengine.in/lock-and-stitch-cast-iron-repair-by-ra-power-solutions-pvt-ltd/