There are fears that only a third of the UKs usual freight trains will be able to run following a dispute between unions and Network Rail.
The vast majority of rail routes in Wales will have no services on Tuesday, June 21, Thursday, June 23 and Saturday, June 25 because of the walkout by members of the RMT union working for Network.
WalesOnline contacted the major freight companies to find out how much the strikes would impact on their ability to move vital goods around the country. In a statement a spokesman for real freight company Freightliner said that the impact would be “devastating”. He said: “Freightliner strongly urges Network Rail, the passenger operators, the RMT and Government to reach a swift agreement to avoid the significant disruption that the series of strikes will cause.