Most free PDFs available online are of the editions. These editions lack modern updates regarding CNC automation and additive manufacturing (3D printing), which are now part of modern syllabi.
: Sand molding processes, melting furnaces, and metal casting techniques. Smithy/Forging workshop technology by bs raghuvanshi pdf
: Physical copies are published by Dhanpat Rai & Co. and are available on major e-commerce sites like Amazon or Flipkart. Book Overview & Contents Most free PDFs available online are of the editions