
7" Rotary Drilling Pipe for Open-Pit Mining. ISO 9001:2000 Certified: Manufacturing process certified under ISO 9001:2000 standards for quality assurance. Full Customization Available: Offers full customization, minor customization, and flexible options from samples or designs. Durable Carbon Steel Build: Constructed from high-quality carbon steel with spray-paint surface treatment for longevity. 100% Finished Product Inspection: Every unit undergoes 100% visual and functional inspection before shipment. 24-Hour Online Support: Provides 24-hour online after-sales service for immediate technical assistance. Proven Mining Reliability: Drilling rigs proven in tough conditions, delivering productivity and low operating costs. Fast Lead Time: Average lead time within 15 workdays for both peak and off-season orders. OEM Service Support: OEM service available to meet specific client requirements and branding needs.