Don't know their pricing standards, I'll just give our minimum quantity prices you guys can compare.
brass (0 impurity brass, safe to solder, chemical treat, and MOST importantly, more elastic. They allow more repeats of folding and curling)
0.1-0.2mm 3cents per sq cm
0.3-0.5mm 4cents per sq cm
Minimum sheet size 50sq cm, minimum quantity 100 pieces, turn around 3 weeks. Large sheets I can get quantity down to like 30 sheets, but this is why I don't generally offer these services. We etch with machines, and sheet materials roll in at 30cm width.
Some of you already knew, all our etch are vacuum filmed on both sides, high grade mat no scratches dents or dins.
With the min quantity you get 1 micron precision (not our highest standard but nano standards are beyond affordable level of this hobby/industry).
We handle all the protection and connectors (you just draw parts), and I can show you design requirements, how to calculate bendlines, protection relieve, etc, AS LONG AS YOU KNEW HOW TO USE COREL. If you didn't, please talk to the company linked above
We offer 85% thickness-width ratio as a standard, means you can etch lines as thin as 0.1275mm on 0.15mm brass, and it will not come out thicker than 0.1285mm per precision standard.
Lastly, here are some basic requirements for drawings. If you didn't understand what I meant, please refer to last paragraph
1.corel or ai. Corel v7 or above preferred.
2.all objects must be vector and sealed (watertight). Filled colors. Boarders must be colorless and preferably 0 line width.
3.SI units only. 90 degree bends need to be > 1X material thickness (1.25X for 0.1-0.2mm brass gives you straight edges no overlap or extra width).
4.color codes: black for unetched. 50% gray for frontal relieve. red for back relieve, powder blue for etched through.
That's it. Etching is simple and straight forward, devil is in design calculations.
btw, turn around 2-3 weeks. We etch for different industries, most of the time these small orders need to wait for orders required the same type of material, so we can bill all the adjustments with the larger orders.