You are writing to the people who will run your parts. Drawings, tolerances and delivery questions all get answered by someone who can walk over to the machine. That is the practical difference between an acrylic supplier with a plant and a sales office with a catalogue.
Send a drawing
DWG, DXF, STEP or a dimensioned PDF. The more of the form you fill in, the more useful the first reply is.
Before you send
Load, span, cleaning agents, indoor or outdoor, whether it seals against a gasket. These decide material grade and thickness faster than any drawing dimension.
Mark the fit features. A part with three critical dimensions can be priced far more accurately than one where everything is toleranced the same.
Quantity break, target delivery date and destination port. Those three determine whether sea or air freight makes sense before we even quote.
