... 实测断面:measured profile 石油钻深:boring for oil 石英质岩石:caple ...
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boring g for oil 石油钻深
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The lathe fixture used for boring 10cy14-1b type high pressure oil pump body parts with seven column holes is designed.
介绍镗削10 CY 14 1b型高压油泵缸体七个柱塞孔车床夹具。
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