Pic of unit.
Prior to order I did check 8620 steel and from what I could tell used in Wiseco, HotRods , Rockwell of 61 or so also the same.
I'm aware steel quality questionable in that neck of woods . I also checked Kingrods have been around a long time but again over there means nada. Was thinking on the 29R/L a min order of say 5k was ordered bad batch steel or manufacture on one or all , they made into pipe line all involved reluctant to pull because of $$$. Just a thought.