Machined Nozzle Sleeve

Surface Treatments

To improve performance and longevity, we offer a range of surface treatments:

Anodizing (Aluminum) – Enhanced corrosion/wear resistance, color options

Plating (Zinc, Nickel, Chrome) – Improved hardness and corrosion protection

Passivation (Stainless Steel) – Maximized corrosion resistance

Sandblasting/Polishing – Improved aesthetics and surface uniformity

Powder Coating/Painting – Decorative and protective coatings

Hardening/Tempering – Increased surface hardness and wear resistance

Quality Control

We maintain strict quality standards through:

First Article Inspection (FAI) per AS9102/PPAP

Dimensional Verification using CMMs, micrometers, and custom gauges

Surface Quality Checks under controlled lighting

Material Certification and traceability

Functional Testing (fit, assembly, and performance validation)

Final Audit & Documentation before shipment

Why Choose Compass?

✅ Precision Machining – Tolerance as tight as ±0.01mm

✅ Wide Material & Finish Options – Full customization support

✅ End-to-End QC – From raw material to final product

✅ On-Time Delivery – Efficient production planning

✅ Expert Engineering Support – DFM feedback provided

Qingdao Compass Hardware Co., Ltd. is a professional manufacturer specializing in precision CNC (Computer Numerical Control) machining with over 15 years of extensive production experience. We are dedicated to providing customers with one-stop customized solutions from design and machining to surface treatment.
The core business encompasses precision CNC machining services, involving the manufacturing of complex parts from various metals (such as stainless steel, aluminum alloys, carbon steel, brass) and engineering plastics (like POM, Nylon, PEEK) . Equipped with comprehensive capabilities including turning, milling, drilling, and tapping, the company focuses on meeting customer demands for high-precision and high-quality products.