PR-620/620C/600II/600IIC FAQs & Troubleshooting PR-620/620C/600II/600IIC Not your product? Sort by Updated Date Popularity 4 Results 1. 07/29/2016 Stabilizers (Backing) 2. 10/16/2015 Embroidery 3. 08/10/2015 Fabric/stabilizer compatibility chart 4. 03/04/2009 Fabric and Thread Embroidering FAQs & Troubleshooting