Posted on August 23, 2018August 25, 2018 by Pulse AssentISO 21970-1:2018 Plastics. Polyketone (PK) moulding and extrusion materials Designation system and basis for specifications Link: ISO 21970-1:2018 Plastics. Polyketone (PK) moulding and extrusion materials Designation system and basis for specifications Source: BSI Standards Related Posts:Government takes action to back small businesses and…New plans to boost health in the workplace to keep…SME Council membership revealed ahead of first meetingUK Government announces extension of CE mark…New laws to introduce digital labelling for…