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Company Profile 陕西金石机械制造有限公司 China Main Product:deep hole drilling machine ,gun drills,BTA deep hole drilling
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Current:Home » Product Categories » » Single-edged gun drill
Similar products Single-edged gun drill Profile The drill bit is divided into integral sintered carbide drill bit and carbide inserts-piece steel drill. Drill stem and drill stock are heat treated. Drill bits, drill stems and drill stocks are welded as a whole.
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