Mochi Tetsu is mentioned in that article as being a source that produces higher quality products than iron sand. Exactly what you’re arguing against.
The facts are that due to the limited availability of good quality iron ore the steel produced in Japan often used iron sand and that led to lower quality products.
That’s not true, no matter how many times you make that unsupported claim.
Holy shit you’re wrong, now with references
https://gunbai-militaryhistory.blogspot.com/2018/02/iron-and-steel-technology-in-japanese.html
You’ve proven yourself wrong.
Mochi Tetsu is mentioned in that article as being a source that produces higher quality products than iron sand. Exactly what you’re arguing against.
The facts are that due to the limited availability of good quality iron ore the steel produced in Japan often used iron sand and that led to lower quality products.