Collar Flange and DIN 11864-2 Pressed/ Plain Welding Flange Manufacturer
Collar Flange with Retaining Ring | INFICON
Amazon.com: AC Infinity 4" Ducting Take-Off Collar, Galvanized Steel Inlet Flange Starter Collar for 4” Ducting with Dryers and Range Hoods : Industrial & Scientific
2-1/8" 4 Bolt Flange Bearing w/Lock Collar HCFS211-34 | Cast Iron 4 Bolt Flange Mount Bearings | Bearings | www.surpluscenter.com