Key and Keyway | Key and Types Of Keys | 15 + Most Important MCQ | Fastener Key Important Questions|

[@raziarashid4287]

Thank you so mch sir for sch a vdio ...

[@albelaarbind2139]

Bahut achha sir

[@abhijeetmarkad8901]

Thanks

[@himanshuraj7078]

Useful video sir

[@HimangshuChetia-rg4ur]

11answer is maybe round key