Process first

Specify the process, not the brochure

Food, PET, site air and process gas. Each band is an admin-managed duty record. The desk filters plants that can actually hold it.

How a duty is written

Bar, FAD, class, port

Working pressure in bar(g), not a catalogue “7–13 bar” range with no duty point.

Required FAD at that pressure, or bottle cavities / site tools that imply the flow.

ISO 8573-1 class if oil-free or food/pharma. Missing papers stay missing.

FOB Ningbo / Shanghai / Shekou, or CIF named port, before the PO.

RFQ desk: If your process is not one of the bands, describe it. We route the sheet to plants that can build it.