Mega Lift Systems
Pump system works by cycling a well open and closed. When open, a plunger interfaces between a liquid slug and gas. Gas below the plunger will push the plunger and liquid to the surface, allowing an additional volume of gas to flow from a producing well.
http://www.megaliftsystems.com/

MGM Well Service, Inc.
A south Texas company offering swabbing, slick line and plunger lift products and services. Includes explanations about traditional as well as hydraulic swabbing and a new two-piece plunger design.
http://www.mgmwellservice.com/

National Cylinder Head Exchange
Shop in Florida for cylinder heads or rebuilt engines. Since 1971 that is what we specialize in at National Cylinder Head Exchange. Free performance camshaft upgrades!
http://www.nationalcylinderhead.com

Cyl-Tec, Inc.
Cylinder products and services, including cryogenic cylinder maintenance,repair, testing, and sales. In Aurora, Illinois.
http://www.cyl-tec.com/

Suburban Cylinder Express
Propane cylinder delivery company specializing in bottle exchange services for grills, outdoor heaters, and mosquito control.
http://www.grill-on.com/

J & J Air Parts, Inc.
Provides cylinder repair services, piece parts, new cylinder assemblies and accessories to the general aviation industry.
http://jjairparts.com

Menon and Menon Ltd.
The Official Website of Menon And Menon Limited Kolhapur
http://www.menon.in

American Standard Manufacturing, Inc.
American Standard Manufacturing, Inc. is an industry leader in innovative equipment designs for storage and handling of low-pressure (propane) and high-pressure (welding and industrial) gas cylinders.
http://www.amrstd.com/

Sankoh Impression Cylinder Cleaner
Manufacturer of impression cylinder cleaner for printing, is seeking overseas distributors.
http://www.tcn-catv.ne.jp/~sanko

Cylinder Based Collision Detection
A game programming tutorial on Cylinder based collision detection and response.
http://spiritking.tripod.com/cdtut.htm