IS 15961-2012 - Tata Steel BSL Relations pdf... · 2018. 12. 2. · IS 15961 : 2012 The licence is...
1
IS 15961-2012 - Tata Steel BSL Relations pdf... · 2018. 12. 2. · IS 15961 : 2012 The licence is granted on the explicit condition that you will mark entire/substantial production