prik punch ka angle kitna hota hai.. book mein 60 de rakha hai.. or sir kehe rahe thy ki..30 hota h..

please bataye..

Prashant
2994 Views
11 Answers

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thin metal plate per scriber ki lines ko dark kerne ke let 60 degree ka prick punch use karenge other non metallic plate per 30 degree ka prick punch use karenge

Sobharam
22 Dec
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prik punch ka angle kitna hota hai.. book mein 60 de rakha hai.. or sir kehe rahe thy ki..30 hota h..