IS: 8680 - 1978; Specification for Engineers' Drawing Instruments, Compass, Bow Pen, Double Knee Jointed with Sector Head Joints

IS: 8680 - 1978; Specification for Engineers' Drawing Instruments, Compass, Bow Pen, Double Knee Jointed with Sector Head Joints - New Delhi BIS 1978 - 7p

/
Copyright © 2024 Central Power Research Institute, Ministry of Power, Govt. of India, Bangalore. All Rights Reserved.