NSF Product and Service Listings
These NSF Official Listings are current as of Tuesday, December 23, 2025 at 12:15 a.m. Eastern Time. Please contact NSF to confirm the status of any Listing, report errors, or make suggestions.
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SAE J2975
Measurement of Copper and Other Elements in Brake Friction Materials
Measurement of Copper and Other Elements in Brake Friction Materials
| Manufacturer Name | Manufacturer ID | Unique Identification Code | Compliance Level | OESC Exemption | Vehicle Make | Model | Model Years | Expiration Date | Self Certification |
| Changzhou Geema Friction Materials Co., Ltd. | 112 | GM 302B | N | - | - | - | - | 12/29/2017 | C0239218-00001 |
| Changzhou Geema Friction Materials Co., Ltd. | 112 | GM LC | B | - | - | - | - | 12/22/2017 | C0239218-00001 |
| Changzhou Geema Friction Materials Co., Ltd. | 112 | GM NC | N | - | - | - | - | 12/29/2017 | C0239218-00001 |
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