Commission Implementing Regulation (EU) 2017/272 of 16 February 2017 initiating an investigation concerning the possible circumvention of anti-dumping measures imposed by Council Implementing Regulation (EU) No 1331/2011 on imports of certain seamless pipes and tubes of stainless steel originating in the People's Republic of China by imports consigned from India, whether declared as originating in India or not, and making such imports subject to registration