部落格
DHD360A Down-The-Hole (DTH) Hammer
DHD360A Down-The-Hole (DTH) Hammer
31
2025
/
03
selection between Down-The-Hole Hammer (DTH) and Roller Cone Bit
selection between Down-The-Hole Hammer (DTH) and Roller Cone Bit
28
2025
/
03
610毫米套管DTH（井下）鑽頭
26
2025
/
03
表面射擊爆破處理DTH岩石鑽頭
17
2025
/
03
鍛造底部岩石鑽孔按鈕鑽頭
11
2025
/
03
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