make-by

06:52 Feb 20, 2019 

What is the overall document about, and written from whose point of view?
And is the standard of EN overall native-speaker? Already, this short extract makes me suspect it is written by a non-native.

I have a feeling that what this is referring to is subcontracting or 'outsourcing' of part of their manufacturing — getting things 'made by' someone else; it sounds odd because of the curious use of 'make' rather than 'made', but I suppose from the company's POV, they are going to 'get someone else to make' them; this sort of ties in with the mention of 'OEM', though more context would undoubtedly clarify.