[Cboldt]

And beyond the chemistry, there are the fabrication methods and heat treatment. All of that potentially relevant in a generic “quality devation” contention. I’ve personally been involved in situations where “everything” ws the same on macro and assay properties, but the difference between success and failure was obvious on microscopic analysis.

[aMorePerfectUnion]

x

[demsux]

BmQ

[philman_36]

Pipefitter, among other things. No need to explain.