Air permeability tester
作者： Nils Fretz
DOI:
关键词:
摘要: The invention relates to an air permeability apparatus (1), which comprises a test head (3) with opening (300), vacuum pump (9), clamping arm (4) and orifice disk (8) being arranged between the wherein has plurality of orifices. Furthermore, is vertically or inclined respect opening.
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