Telephone Ring Generator
Ring a telephone on stage or theatre, telephone ringer, bell telephone sounds, electronic ring generator, uk or usa telephone cadence, telephone props
http://www.precisiovision.freeuk.com/

Global Rubber Products, Ltd.
Distributor of O-Rings Q-Rings, Tetra seals, backup rings, O-Ring cords, cord rings, sheet rubber and gaskets.
http://www.globalrubber.com

Busak+Shamban
Trelleborg Sealing Solution, your partner for sealing technology
http://www.busakshamban.us

Ringlink
Free CGI Perl program for running webrings
http://www.ringlink.org/

Movable Type Blog Ring
A ring linking Movable Type sites, tutorials, and templates will provide a great way to check out what other people are achieving with MT.
http://www.kiwinessie.net/rings/mtblog/

Thermodynamics Asia Pacific Pte Ltd
Manufacturer and supplier of seals and gaskets,flexible graphite, braided packing,cut joints,gasket sheets and rolls made from pure mineral flexible expanded graphite materials.
http://www.thermody.com

Acorn Seals Ltd
Acorn Seals are a comprehensive UK based Seals supplier
http://www.acornseals.com

Rotek USA
Rotek is the leader in the engineering, manufacture and service of large diameter slewing ring bearings and seamless rolled rings (forged rings). Rotek offers many styles of slewing ring bearings including: ball bearings, roller bearings, wire race bearings, precision bearings and fifth wheel bearings.
http://www.rotek-inc.com/

Honeycrown Ltd.
Precision polymers mfg - Honeycrown Limited - rubber washers, gaskets, seals, rings, orings, moldings and tubing in Nitrile, EPDM, Neoprene, Natural, SBR, Silicone and Viton in food grade
http://www.honeycrown.co.uk

Lord of the Rings
Lord of the Rings is a free Webring System. You can create your own rings, invite sites to join your ring, and run your ring with ease!
http://www.webring.cc/