Anti abrasion joint Type(F-nonmetal,J-metal) | Wearing bush work OD(mm) | Casing OD(mm) | Length (mm) | Connection Thread Type |
SRF(J)K146 | 142-146 | 177.8 | 770-790 | NC38 |
SRF(J)K150 | 155-156 | 193.7 | 770-790 | NC46 |
SRF(J)K206 | 175-210 | 244.5 | 940-960 | NC50 |
SRF(J)K260 | 260-300 | 339.7 | 1040-1060 | 5 1/2〞FH |