Inquiry (采购产品): home project Was tinkering with hydrogen production to increase gas mileage making a small unit which would fit in an engine, but have a question on the materials used and the thickness for the anode and cathode, which material for each produces the most hydrogen? Stainless, aluminum, silver, etc. Do you have any advice on that for the novice inventor? Thanks, Randy **** Hidden Message ***** randy skinner WA 98606 USA Company: none E-mail: rtskinner2@msn.com **** Hidden Message ***** rtskinner2@msn.com