https://bestec-optics.eu/2015/optics/product-category/p393-exit-slit-unit-esm-p-branch-nsls-ii/
P393- Exit slit - Bestec GmbH
Exit slit unit for soft X-ray synchrotron radiation, ESM beamline at synchrotron radiation source NSLS-II, USA - Bestec GmbH
exitslitbestecgmbh