Certain types of large manufacturing equipment must be built in a crop-specific way or at least benefit significantly by being designed for a particular crop.

For example, all cannabis flower (non-extracted) is harvested by hand and then trimmed by hand. Recently machines were made to trim large amounts of cannabis efficiently with high quality. It used to take one person at least an hour to trim a pound of weed. Now a machine can do 10lbs a minute.

Throughout the supply-chain, there are machines that must be built to support the physical scale. This isn't unique to cannabis, vaping had the same problem. The cartridges used to all be filled by hand until someone invested in the machinery. That what causes standards and grades to be created. None of that really exists in cannabis/hemp right now.