补充描述:
Beta Radiation Shields (Nalgene brand) are transparent acrylic shields, 9mm thick, supplied, rather than manufactured, by Avantor Life Sciences Shanghai Co., Ltd. in pharmaceutical grade, with no samples offered. Certified to the company's in-house standard, they are distributed across North America, Central/South America, Western Europe, Eastern Europe, Australasia, Asia, the Middle East and Africa.
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