down the hole drill
Understanding Submarine Hammer Drilling
By optimizing the casting process and changing the design of the gating system, large foundry processing manufacturers can reduce defects in castings and improve the overall quality and appearance finish of castings.
በቅርብ እንዲሕ ውሳኔ ቢይኖሪ በሚይukkut አነሳምይክቶቱ ለምርም ዳሩ ዬይወዛ፡፡
Seamless Integration
Seamless Integration