Core input
Drawing, sample, dimensions or photos are ready before suppliers interpret the part.

Use this before sending drawings, samples, photos or a written brief. The aim is enough clarity for factories to quote the same requirement.
Treat supplier claims, certificates, photos, samples and messages as evidence to check, not as guarantees.
A low unit price can still depend on provisional freight, duty, VAT, inspection, packaging or recovery assumptions.
Sample approval, inspection scope and payment release should be written before production or shipment moves on.
Plinth&Co fits when the buyer needs a clearer decision file before RFQ, deposit, sample approval, shipment or repeat order.