德國schunk公司是zui大的碳刷/高溫石墨生產廠商之一，為Thermo（熱電）生產的原子吸收光譜提供石墨管OEM代工，訂購時您只需提供THERMO的貨號，就能找到相同品質，但價格更加實惠的schunk產品，常用規格如下列表：
| Thermo石墨管貨號 | Schunk貨號 | 產品描述 | 包裝 |
| 942339390031 | 10158672 | Standardtube plain, uncoated D6,6/5x30mm | 10根/PK |
| 942339390091 | 10158661 | Standardtube plain, coated D6,6/5x30mm | 10根/PK |
| 942339095031 | 10158678 | Standardtube plain, uncoated D10,5/5x30mm | 10根/PK |
| 942339390081 | 10158680 | Probe 44x3,7x1,5mm | 10根/PK |
| 942339390191 | 10158660 | Partridged tube, coated D6,6/4,1x30mm | 10根/PK |
| 942339395031 | 10154378 | Partridged tube, uncoated D6,8/3,6x28mm | 10根/PK |
| 942339395091 | 10158659 | Standardtube plain, coated D6,8/5x28mm | 10根/PK |
| 942339395071 | 10158658 | Partridged tube, coated D6,8/3,6x28mm | 10根/PK |
| 942339395041 | 10154367 | Partridged tube,extended lifetime, coated （ELC） D6,8/3,6x28mm | 10根/PK |
| 942339395081 | 10158676 | Tube with slit, coated D8,3/6,5x26,5mm | 10根/PK |
| 942339395191 | 10160972 | Tube with preinserted forkedplatform | 2根/PK |
| 942339395161 | 10158673 | Zeeman electrode D18/4,4x20mm | 2根/PK |
