# The Democratic People's Republic of Korea (Sanctions) (EU Exit) Regulations 2019, Paragraph 19

Extent: E+W+S+N.I.

Ring-shaped seals and gaskets, having an inner diameter of 400 mm or less, made of any of the following materials—
(a) copolymers of vinylidene fluoride having 75 % or more beta crystalline structure without stretching;
(b) fluorinated polyimides containing 10 % by weight or more of combined fluorine;
(c) fluorinated phosphazene elastomers containing 30 % by weight or more of combined fluorine;
(d) polychlorotrifluoroethylene (PCTFE, e.g. Kel-F ®);
(e) fluoro-elastomers (e.g. Viton ®, Tecnoflon ®);
(f) polytetrafluoroethylene (PTFE).

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Source: https://www.legislation.gov.uk/uksi/2019/411/schedule/2/paragraph/19 (the official version)
Page: https://openlegislation.uk/democratic-peoples-republic-of-korea-sanctions-eu-exit-regulations-2019/schedule-2/paragraph-19
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.