खोबणी केलेल्या भागांचे इंडक्शन हार्डनिंग कसे करावे? https://www.youtube.com/watch?v=TOcynZ9NSqU At present, there are many types of grooved quenched parts, such as camshaft opening grooves, differential housings, etc. पुढे वाचा » 2022-08-30