Old aluminum window parts

A quick learner from USA says:
November 5, 2018
can you please help me find the following parts for old aluminum double hung windows?
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Paul from SWISCO responded:
November 5, 2018

We immediately recognize your die cast cams. See our 17-034 and 17-035 for consideration. For your channel balance, we need for you to provide us an update with the metal length measurement of the balance as well as any stampings or markings on the balance. Could you also include a photo of the attachment at the end of the balance as well as a photo of your pivot shoe. Don't forget to include the width, height, and thickness of the shoe.
LH Cam Pivot, 7/16"
LH Cam Pivot, 7/16"
17-034
$4.97
RH Cam Pivot, 7/16"
RH Cam Pivot, 7/16"
17-035
$4.97
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