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| 31. | double open end wrench |
| 双头开口扳手 |
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| 32. | double end cut-off and boring machine |
| 双端横切及主钻孔机 |
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| 33. | double end circular saw flanks grinding |
| 双头圆锯片侧磨齿机 |
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| 34. | double close end spanner |
| 双头活动扳手 |
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| 35. | double end dimensioning and profiling machine |
| 双端裁边和铣型机 |
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| 36. | double end cutting and tenoning machine |
| 双端裁边－开榫机 |
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| 37. | double end 15 degree angle wrench |
| 双头15度斜口扳手 |
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| 38. | double open end screwdriver |
| 双头螺丝起子 |
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| 39. | double -end callipers with depth gauge |
| 带深规的双头卡尺 |
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| 40. | bm=2d Double end studs bm=2d |
| GB/T900-1988双头螺柱 |
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