What is documented
Company profile states its products achieved ISO 9001. That is the only certification statement documented for this company on this site, and it is presented here exactly as a company profile statement, not as an independently verified certification conclusion. No certificate number, issuing body, scope, or validity period is published here, because none has been documented.
What to ask for
All other certificates are available upon request. Buyers who need a certificate for a specific product or order should ask for it in the inquiry, naming the product and the certificate they need, and should confirm the certificate details in the reply before ordering. This page does not list certificates that have not been documented, and it does not promise that any particular certificate will be available for any particular product.
Related pages
For company background, see the about page. For the product lines, see interference filters and optical components. To ask for a certificate, use the inquiry page and please confirm the specification, quantity basis, and delivery basis in your inquiry before ordering.