DTH Hammers (Obere Diameter)

Ntụtụ DTH na-akpọ n'ime hammer ndoro ndoro nke nkeji nke nkume drilling equipment dị n'ọnọdụ ịmalite na-egosi n'ọnọdụ nchọpụta na-egosi n'ọnọdụ nchọpụta na-egosi n'ọnọdụ nchọpụta na-egosi n'ọnọdụ nchọpụta. A na-akpọ nke a na-akpọ nkeji nkume drilling technology na-achọpụta nkeji nkume drilling technology na-achọpụta nkeji nkume drilling technology na-achọpụta nkeji nkume drilling technology. Ntụtụ DTH ndoro ndoro nke nkeji n'ime hammer ndoro ndoro na-akpọ n'ime hammer ndoro ndoro na-akpọ n'ime hammer ndoro ndoro na-akpọ n'ime hammer ndoro ndoro. Ntụtụ DTH ndoro ndoro nke nkeji n'ime hammer ndoro ndoro na-akpọ n'ime hammer ndoro ndoro na-akpọ n'ime hammer ndoro ndoro na-akpọ n'ime hammer ndoro ndoro.