: The document contains series of photos (often labeled Type 1 through Type 12) showing examples of acceptable and unacceptable surface conditions. Defect Categories : It covers common casting issues such as: Cracks : Linear ruptures in the metal.
The is an indispensable tool for anyone involved in the production, inspection, or maintenance of piping systems. It bridges the gap between raw manufacturing and high-precision engineering, ensuring that every valve and flange meets the rigorous safety demands of modern industry.