Adapter ring Apr. 22, 2010 1:43:52
Specification of our adapter ring as follow: * M25, 27, 28, 30, 30.5, 34, 40.5mm, 43mm, 46mm, 49mm to 37mm * M37, 40.5, 43, 49, 55, 58, 62 to 52mm
* M52, 55 to 58mm
* M55, 58, 62, 67 to 72mm
* M67....
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