Sealing nplhaib tsim yuav tsum tsim nyog Sealing thev naus laus zis hauv kev txhim kho hydraulic thiab pneumatic thev naus laus zis, kev siv thev naus laus zis siv txawv teb chaws feem ntau yog piston sealing, feem ntau cia siab rau kev sib kis nruab nrab siab ntawm sealing Cheebtsam ntawm lub qhov ncauj extrusion kom ua tiav ...
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