we use anti-static films or copy paper to package the filter glasses, then we put the packaged filter glasses into the cartons with foamed plastic around to keep the glasses safety.
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To be negotiated
we have 12 SERIES coating filters, has a strong technical group and rich experience over 40 years. There are advanced automatically operated coaters (Optorun OTFC 1300 and Leybold Syrus 1350), high performance spectrophotometer