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徐州捷圖機械常年供應液壓鉆機,煤礦鉆桿配件

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更新時間:2022-7-18 17:54:13

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又稱仿英鉆桿、圓鉆桿、外平鉆桿、地質合金鉆桿和煤礦坑道常規鉆桿,鉆桿接頭選用優質合金結構鋼,經真空調質處理,大大提高了抗疲勞強度和抗剪切強度及抗彎強度。


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