10125mm/ 60Kg 1 in 12 OR Curve Switch RT- 4219- PHYSICAL AND CHEMICAL TEST REPORT OF MS BOLTS AND NUTS 30 November 2021 by mechtechguru.com 10125mm/ 60Kg 1 in 12 OR Curve Switch RT- 4219- PHYSICAL AND CHEMICAL TEST REPORT OF MS BOLTS AND NUTS