What I liked is the “engineer-first” view of fluid control: you quickly see how tolerances, surface finish, and material choice tie directly to real issues like micro-leaks, pressure stability, and valve response. In practice, a tiny burr or the wrong sealing groove geometry can turn into downtime and messy troubleshooting. That’s why it’s helpful when a provider talks about machining processes and inspection in the same breath. If you’re sourcing custom components for fluid control, it’s reassuring to see attention paid to repeatability across batches, not just one perfect prototype.