Make a CO2 LASER
Here, there are all the information you need...
www.amazing1.com -----------> Buy: mirror,lens,LASER,FOCUSING LENS
www.directedlight.com ---------> Buy: mirror, lens,FOCUSING LENS
www.macbicnj.com ------------> Buy PIREX tube
www.sciproj.com --------------> Buy PIREX tube
www.plans-kits.com/lasers.html ----> Buy: LASER
www.chinaoptronics.com/product ---------> Buy: LASER
www.emissiontechnologies.com/products.htm---> LASER, CNC LASER MACHINE
http://www.eio.com/repairfaq/sam/laserfaq.htm#faqtoc------> A LOTS OF INFORMATION ABOUT LASERS