Jinguan Screw Co., Ltd.
Produces screws and cylinders for injection machines and extruders.
http://www.jinguan-screw.com/

Dongshin Hydraulics Co., Ltd.
Manufactures injection molding machines from 25 ton to 5000 ton. Supplies feed screws, barrels, cylinders and heaters.
http://www.dongshin.net/

Protomold
Injection Molding Prototypes: Specializing in custom injection molding, rapid injection molding, short run injection molded, injection molding prototype, injection molded, and injection mold
http://www.protomold.com

Catalina Cylinders
Catalina Cylinders is an industry leading manufacturer of quality high and low pressure aluminum compressed gas cylinders.
http://www.catalinacylinders.com/

Illinois Pneumatics
Illinois Pheumatics designs and manufacturers pneumatic cylinders. Illinois Pneumatics prides itself in modifying standard cylinders for special use.
http://www.illpneumatics.com/

Custom Cylinders International Incorporated
customcylindersintinc.com is the offical web page for Custom Cylinders International Incorporated, Mico Machining, and Custom Cylinder Repair Service
http://www.customcylindersintinc.com/

Rototechnix
Rototechnix, leader in rotary tooling and rotary die-cutting presents a large range of die-cutting cylinders, printing cylinders and hot foil stamping dies.
http://www.rototechnix.com/

Custom Cylinders International
customcylindersintinc.com is the offical web page for Custom Cylinders International Incorporated, Mico Machining, and Custom Cylinder Repair Service
http://www.customcylindersintinc.com

Blue Rhino Corporation
Provides consumers with a means to exchange empty grill cylinders for clean, safer, precision-filled cylinders. (Nasdaq: RINO).
http://www.bluerhino.com/

Grossel Tool Company
A full service manufacturer of welding equipment, including resistance weld guns (robotic, manual, fixture) and hydraulic cylinders and pneumatic cylinders.
http://www.grosseltool.com