Heat Treat Radio #42: Justin Rydzewski on CQI-9 Rev.4 (Part 1 of 4) – Pyrometry

Heat Treat Radio host, Doug Glenn, begins a 4-part series with Justin Rydzewski about Revision 4 of CQI-9. These two experts, who served on the revision committee, are full of interesting information and practical advice on how to understand and comply with CQI-9 Rev.4.