Gravotech Engineering Pvt.Ltd.A 100% subsidiary of GRAVOTECH SAS FRANCE.Gravotech is global leader in marking technology and enjoys the privilege of inventing the World's first permanent Direct Part Marking technology called Micro-Percussion(Patent Owner).Micro-Percussion is a technology of marking in which a solid hard metal stylus hits the substrate with the frequency of 300Hz thus making a continuous homogeneous line of desired size.