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SHEHWA-380-DTH气动钻机
SHEHWA-380- dth yog qhov ua tau zoo sib cais hom气动钻机tthiab tlos ntawm SHEHWA钻机raws li "tus nqi qis, ua haujlwm tau zoo" kev lag luam xav tau ntawm kev lag luam drilling。
SHEHWA-380- dth yog qhov ua tau zoo sib cais hom气动钻机tthiab tlos ntawm SHEHWA钻机raws li "tus nqi qis, ua haujlwm tau zoo" kev lag luam xav tau ntawm kev lag luam drilling。