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Durable 4140 Steel High Precision CNC Machining Service with QPQ Surface Finishing

Precision CNC Machining
November 14, 2025
Category Connection: Precision CNC Machining
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#High Precision CNC Machining #CNC Machining Service #CNC Machined Parts
Brief: Discover our high precision CNC machining service for durable 4140 steel parts with QPQ surface finishing. Perfect for customized drawings, our service ensures exceptional accuracy and quality with tight tolerances of +/-0.002~0.005mm. Trust our ISO9001:2015 certified process for reliable results.
Related Product Features:
  • High precision CNC machining for 4140 steel parts with QPQ surface finishing.
  • Tight tolerances of +/-0.002~0.005mm for exceptional accuracy.
  • Accepts various file formats including IGES, STEP, SolidWorks, and AutoCAD.
  • Comprehensive inspection using CMM, Projector, and Height Gauge.
  • Lead time of 7~35 working days for efficient production.
  • Quality assurance with ISO9001:2015, SGS, and RoHs certifications.
  • Flexible payment terms including MoneyGram, Western Union, and T/T.
  • Customized solutions from detailed drawings to finished components.
Faqs:
  • What materials do you use for CNC machining?
    We specialize in 4140 steel, known for its durability and strength, with QPQ surface finishing for enhanced performance.
  • What is the tolerance range for your CNC machining service?
    Our service offers tight tolerances of +/-0.002~0.005mm, ensuring high precision and quality for your components.
  • What file formats do you accept for custom drawings?
    We accept IGES (igs), STEP (stp), SolidWorks (sodprt), PRT, and AutoCAD files for seamless processing of your designs.
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