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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.

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.

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

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

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