| Supplier | Phone | Fax | Country | Inquiry contact |
|---|---|---|---|---|
| 3M Technical Ceramics ( Zweigniederlassung der 3M Deutschland GmbH ) | +49 831 5618 260 | +49 831 5618 8260 | Germany | REQUEST |
| BOC Sciences | +1-631-485-4226 | +1-631-614-7828 | USA | REQUEST |
| Dayang Chem (Hangzhou) Co.,Ltd. | +86-571-88938639 | +86-571-8893-8652 | P.R.China | REQUEST |