TubeTronic
tubetronic.com
http://www.tubetronic.com/

Woolf Aircraft
Woolf Aircraft specializes in tight radius, thin wall tube bending. Stainless and aluminum pre-bent elbows are stocked in 90 and 180 degree bends for immediate delivery. With 26 power tube bending machines available for up to 8 inch diameters
http://www.woolfaircraft.com/

One-Off Titanium, Inc.
One-Off Titanium builds handcycles in their machine shop. Leni Fried Designs does beautiful bicycle painting and anodizing and printmaking. Leni also makes political and activist buttons and pins. All of these can be seen at this site.
http://www.titaniumarts.com

Phamitech International Company Ltd
Exporter of electron tubes, TWT, valves, thyratrons, magnetrons, klystrons, transmitting tubes, heating tubes, vacuum interrupters and X-ray tubes made in China
http://www.phamitech.com

Valtimet Welded Tubing
The complete global source of specialized welded tubing. Valtimet is an internationally recognized expert in the manufacture of welded titanium tubes, stainless steel and copper-nickel welded tubes for power generation, desalination, chemical, petrochemical processing and automotive industries.
http://www.valtimet.com/

Daily Electronics
Retailor of electron tubes and vacuum tubes, plus new and hard-to-find obsolete tubes.
http://www.dailyelectronics.net/

PSP-Tubes.com
PSP Tubes for Paint Shop Pro 6, 7 and 8. Free downloads. Tutorials. Members area for unlimited downloads.
http://www.psp-tubes.com/

Pramor
Italian producer of pure titanium and beta titanium optical frames.
http://www.pramaor.com/

President Titanium
Established in 1973, President Titanium provides the largest inventory of domestic 6AL/4V, 6AL/4V ELI, and grade 4 titanium bar, sheet and plate in the country.
http://www.presidenttitanium.com/

International Titanium Association
Promotes the use of, and dissemination of, information about titanium.
http://www.titanium.org/