If you are submitting a Zip or 7-zip file that contains multiple part files, you can include an "Instructions.txt" text file that includes the quantity, material and surface treatment of each part

For example:

	part number: 500A
	quantity: 5
	material: Plastic Acetal AF100
	treatment: none

	part number: 500B
	quantity: 1
	material: Aluminium 2011-T3
	treatment: clear hard anodized

	quantity: 1
	material: Aluminium 6061-T6
	treatment: blue anodized