Wholesale High Quality API Drill Collar Spiral Non-Magnetic Drill Collar

Wholesale High Quality API Drill Collar Spiral Non-Magnetic Drill Collar. API Certified Quality: Strictly abides by API 7-1, API 7-2 standards with ISO9001 and HSE certifications. Non-Magnetic Material: Made of P550 material with relative permeability <1.010 and low magnetic field gradient. Full Product Range: Supply full set of drilling tools including drill pipe, bits, and heavy weight drill pipes. Customization Options: Supports customized logo, packaging, and graphics with a minimum order of 1 piece. 1-Year Warranty: Provides 1-year warranty with free replacement for quality issues and timely assistance. Professional QC: 100% inspection for every order before shipping with professional QC team and advanced equipment. Flexible Payment: Accepts T/T, L/C, D/P, PayPal, and Western Union with flexible terms for small orders. Fast Delivery: Normal delivery time is 10-15 days, depending on purchasing quantity.