Control Within 0.005mm Precision Automatics Bulkhead Brass Compression Fitting. Ultra-Precision Machining: Diameter tolerance 0.002mm, Roundness 0.0005mm, Straightness 0.005mm. Extensive Material Options: Carbon steel, Alloy steel, Stainless steel, Brass, Aluminum, and more. Custom Surface Treatment: Available options include plating nickel, zinc, passivation, phosphating, black coating, and anodizing. OEM and ODM Services: Full customization for logo, design, and specific product requirements. Rapid Response Support: Service response within one hour; quotation provided within 12 working hours. Comprehensive Heat Treatment: Includes oil quenching, high frequency quenching, carburization, and vacuum heat treatment. 6-Month Quality Warranty: Covers quality issues with 99.9% quality satisfaction guarantee. Flexible Sample Policy: Free samples for standard products (freight on account); customized samples available.