
API Certificated Nmdc Non Magnetic Drill Collar for Oil Well Drilling Rig. API Certified Non-Magnetic: Certified by API 7-1/7-2 with non-magnetic properties for accurate drilling. Forged P550 Material: Manufactured from P550 material using forging process for high strength. Full Drilling Tool Supply: Supply full set of drilling tools including drill pipe, bits, and rigs. Custom Logo & Packaging: Supports customized logo and packaging with a minimum order of 1 piece. 1-Year Warranty: Provides 1-year warranty with free changes for quality issues. Strict Quality Control: Professional QC team ensures strict inspection and testing before shipping. Fast Delivery: Normal delivery time is 10-15 days depending on purchasing quantity. Integrated Manufacturer: Integrated corporation specializing in manufacturing and exporting.