
R32/R38/T38/T45/T51 Drill Pipe Coupling/Mining Equipment. Forged Alloy Steel Construction: Made from 42CrMo alloy steel and carbide for high durability in mining and quarrying. Full Customization Options: Accepts custom designs, samples, and specific painting colors like gold or others. Anti-Creep Full Bridge Design: Eliminates coupling creep along threaded joints, maintaining tighter joints and reducing jamming. 100% Finished Product Inspection: Every unit undergoes strict visual and functional inspection before shipment. CE and ISO Certified: Manufactured under ISO 9001 standards with CE certification for quality assurance. Low MOQ for Testing: Minimum Order Quantity is just 1 piece, allowing for easy sample testing. Fast Delivery Time: Standard delivery within 7-15 days, with off-season lead time within 15 workdays. One Year Warranty: Comprehensive one-year warranty coverage for peace of mind and quality guarantee.