جهاز الحفر الدوراني SUNWARD SWDM280 ذو فتحة كبيرة
Strong rock penetration and large aperture capability
With a high torque of 300kN · m and a strong pressure of 260kN, it can efficiently drill into hard rock formations such as moderately weathered and slightly weathered granite and ...
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SUNWARD RIGSWDM280
