Thanks for the information.
Bristol Aerospace was the sole Cdn manufacturer of the CRV7. I don't know if they ever licensed other companies to manufacture them. The original inert warheads had tungsten cores, not steel. They found out, by accident, that they were better penetrators than steel, but most costly, so they were dropped from production.
When we were demonstrating the CRV7 in Europe around 1980, the extra 0.3 seconds of burn time caused impact explosions. The pilots were following their checklists developed with FFARs. As a result, there was a little propellant remaining in the tube on impact. The explosions startled the officers observing and a complaint was laid, accusing the Cdns of using an HE warhead "for show". This wasn't true, and all part of the learning curve.