Purple Cow Brand sees Superb Results Posted on March 13, 2021May 28, 2021 by Rob Doran 13 Mar The NEW Purple Cow range of products manufactured in England for DP Agri start to show promising results with the new glue, Dermapaste and Rubber Blocks all available call for a chat and some sample material Rob Doran DP Launch NEW Blocking Glue 20 Hydraulic Crushes to get out this week, first two on their way to Poland