Rotary drilling rigs are widely used in foundation engineering due to their efficiency and flexibility. However, drilling through hard rock significantly increases the difficulty of construction, demanding better equipment performance and advanced operational techniques. To enhance drilling efficien Read More

External public relations As a rotary excavation management personnel, anything is not as important as the external public relations with the Party, should be absolutely obedient to the arrangements, actively cooperate with, according to the Party's work instructions to carry out the work, and Read More