R38 76mm Thread Button Drill Bit Flat Face Drill Bit برای حفاری سنگ ها

سرنا
November 20, 2024
Video Description:
Discover the R32 Threaded Drill Rod Top Extension, designed for mining and tunneling operations. These high-strength steel rods feature threaded connections for easy assembly, ensuring efficient drilling into rock and soil. Perfect for professionals in mining, construction, and geotechnical engineering.