Sturgis Feathers
Distributor of ostrich, pheasant, peacock and marabou feathers.
http://www.sturgisfeathers.com/

Norris Springs Ltd
Norris Springs are a UK based manufacturer of compression springs, extension springs, torsion springs and flat springs
http://www.norris-springs.co.uk

Chennq-Dieen Spring Co.
Manufacturer in Taiwan of torsion springs, machine gun springs, office chair springs, bicycle shock absorber springs, car engine valve springs and motorcycle engine valve springs.
http://www.chennq-dieen.com.tw/

A.V. Weber Company Inc
A.V. Weber in North Wale, PA manufactures springs, wireforms and stampings for industrial, aerospace, medical, pharamaceutical and specialty components.
http://www.avweber.com/

American Precision Spring
American Precision Spring Corporation is a full service custom spring manufacturer, Silicon Valley spring manufacture, bay area spring manufacturer, California spring manufacture, Northern California Spring Manufacture.
http://www.americanprecspring.com/

The Structure of Avian Skin and Feathers
Technical article describing a bird's skin and associated structures, its feathers, beak, claws and spurs.
http://pcwww.liv.ac.uk/~timn/THE%20STRUCTURE%20OF%20AVIAN%20SKIN%20AND%20FEATHERS.doc

Master Spring & Wire Form
Master Spring is a manufacturer of wire forms and custom springs, including compression springs, extension springs and torsion springs.
http://www.masterspring.com/

C.M.K. Flies and Feathers Ltd.
Fly Fishing Flies Manufacturer and Exporter: Mouches Devaux (France) and C.M.K. Flies & Feathers (Thailand)
http://www.cmkflies.com

Ming Tai Industrial Co. Ltd.
Taiwan manufacturer of steel strip springs, constant force springs, power springs and variable force springs.
http://www.powerspring.com.tw

Hangzhou Xingfa Spring Co. Ltd
Manufacturer of brake valve springs, auto suspension springs, hot roll springs, wire, spiral, wavy, trampoline, valve, hoisting jack, clutch, bracket and motorcycle shock absorber springs.
http://www.xfspring.com