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Jointed gouging copper-coated carbon electrode
| dia. (mm) | length(inch) | current range(A) |
| 8*355 | 5/16*14' | 500~550 |
| 9*355 | 23/64*14' | 500~600 |
| 10*355(430) | 3/8*14'(17') | 600~650 |
| 11*355(430) | 7/16*14'(17') | 650~700 |
| 12*355(430) | 15/32*14'(17') | 700~800 |
| 13*430(510) | 1/2*17'(20') | 800~1000 |