Define the approval
Agree the sample quantity, inspection method, evidence required and the person who approves the sample. Identify any qualification or regulatory requirement before requesting a quote.
Define repeat supply
Specify packing format, batch labels, revision control, change notification and handling requirements. Keep a reference sample where appropriate. Minimum batch, timing and costs require supplier confirmation.
Unknown details are welcome
Use “please advise” where necessary and attach a clear photo or sketch. The first discussion can establish missing inputs; it does not commit you to a material or design.