Driven by Quality. Built on Reliability.
Quality Control
AIHAO implements a comprehensive quality control system covering every stage of production — from design and material inspection to final inspection, packaging, and storage.
All processes follow strict quality standards, supported by trained personnel to ensure consistency and reliability.
During production, all processes are carried out in strict accordance with defined procedures.
We ensure product quality through advanced inspection equipment, standardized methods, clear control procedures, and well-trained personnel.
Pre-Shipment Inspection (PSI) is the final quality check before shipment, ensuring compliance with all requirements and preventing defects from reaching your market.
Visual inspection_1
Hand Writing Test
Visual inspection_3
Laboratory Testing
AIHAO is committed to continuous innovation through independent research and development. Our in-house laboratory serves as a critical foundation for product quality, rigorously testing and controlling key technical parameters. We continuously invest in upgrading our laboratory capabilities to strengthen quality assurance and enhance our overall product control system.
AIHAO’s laboratory conducts performance testing on a wide range of writing instruments, including ballpoint pens, gel pens, rollerball pens, highlighters, permanent markers, and whiteboard markers.
AIHAO utilizes advanced testing equipment such as writing test machines, actuation force testers, salt spray chambers, vibration testers, force gauges, environmental chambers, and drop test equipment.
Physical Function Test
Chemical Test
Writing Test