German to English Tech/Engineering Manufacturing

This comes from an interview in a trade journal (aimed at other management types, pace Francis) about protecting one's self from product piracy. The answer is to be so innovative that the pirates can't keep up, but I'm having trouble with 'maßlich in the following sentence:

Mit **maßlichen** Nachbildungen alleine kann man heute auch keine chinesischen Kunden merh täuschen. Dazu kommt die schlechte Qualität der Kopien.

The idea being that one cannot even fool Chinese customers anymore with ??mere?? imitations. And then there is the poor quality of the copies.

Could this be "imitations of the correct size only"?
mere imitations?
pure/simple imitations?

Could this be slang? (The manager being interviewed seems to prefer a 'man on the street' register as opposed to something loftier).

tia/vDiV