| ● | Using with Tape Expander |
| ● | Low cost with high quality |

| Features | |
| ○Adopted conductive resin (inner ring) ○Provided safety data sheet |
○Low cost with high quality |
| Specifications | |||
| DR-4 | DR-5 | ||
| Inner ring | insideФ140xouterФ146x height6mm | Inner ring | insideФ170xouterФ178xheight6mm |
| Outer ring | insideФ146xouterФ152xheight6mm | Outer ring | insideФ178xouterФ186xheight6mm |