Quality is always our priority

ISO9001 & IATF16949 Certified Manufacturer
Commitment to continuous quality improvement and customer satisfaction.

Our Quality Control Process

ZY company has a long-term quality assurance program and quality testing facilities to ensure our products meet high quality standard. With cutting-edge quality inspection technologies and testing equipments, we’re able to inspect the dimension, hardness, tensile strength and so on during whole manufacturing process.

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Incoming Quality Control

All raw materials or semi-finished parts are obtained from carefully selected suppliers, and will be go through extensive quality inspection before being stored or processed.

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In-process Quality Control

FAI（first article inspection）will be performed and recorded during IPQC. We focuses on appearance and critical dimensions at each stage of production.




  • Appearance Check
  • Dimension Check

Outgoing Quality Control

OQC process will ensure the parts produced meet customers’ requirements before shipping.

  • Appearance Check
  • Dimension Check
  • Assembly Check
  • Hardness Check
  • Tensile Strength Check
  • Other special request check
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    Quality Inspection Equipments

    • SEREIN Croma Coordinate Measuring Machine (CMM)
    • VMS3020 Two Dimensional Measurement
    • Granite Inspection Table
    • Digimatic Heitht Gages, 0-600 (mm)
    • Full Range of Pin Gage, 0.5-12 (mm)
    • Full Range of Vernier Caliper, 0-100-150-200-300-600-1000 (mm)
    • Outside Micrometers, 0-25-75-100-125-150 (mm)
    • Surface Roughness Tester, Hardness Tester

    Quality Assurance Works

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