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การก่อสร้าง เครื่องเจาะที่ 3 ความลึก 30m เครื่องเจาะที่ 3 XZQ229

XZQ229 down-the-hole drilling rig down-the-hole drilling rig Expert evaluation: The down-the-hole drilling rig is a medium-sized integrated down-the-hole drilling rig developed mainly for various types of mines such as quarries, cement mines, and open-pit coal mines. It can complete the drilling construction of main blast holes and pre-split holes. Down-the-hole drilling rigs have the characteristics of large drilling diameter, high drilling efficiency, and wide adaptability.