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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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三棱鉆桿

更新時間:2022-7-18 17:58:39

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是以帶有錐型過渡的三棱圓弧鋼管為鉆桿桿體,與螺紋形式或三角、四方、六方等連接形式的鉆桿接頭,進行摩擦焊接制造而成的煤礦鉆探用鉆桿。




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