
Granted intellectual property
Utility model patent certificate 01
ZL 2019 2 0752935.8
Utility model patent grant certificate.
STRENGTHS & CREDENTIALS
Explore YIYE’s quality management certification, intellectual property, business partnerships and gear and sprocket application examples.

INTELLECTUAL PROPERTY
Utility model patents and software copyright registrations.

Granted intellectual property
ZL 2019 2 0752935.8
Utility model patent grant certificate.

Granted intellectual property
ZL 2019 2 0781964.2
Utility model patent grant certificate.

Granted intellectual property
ZL 2019 2 0781978.9
Utility model patent grant certificate.

Granted intellectual property
ZL 2019 2 0781955.3
Utility model patent grant certificate.

Granted intellectual property
ZL 2019 2 0782905.1
Utility model patent grant certificate.

Granted intellectual property
ZL 2019 2 0781990.5
Utility model patent grant certificate.

Software copyright registration
2021SR0620608
Software copyright registration certificate retained by the factory.

Software copyright registration
2021SR0620829
Software copyright registration certificate retained by the factory.
CERTIFICATION
IATF 16949 certification for gear and sprocket production.

Quality system certification
IATF 0520159 · USI 39PTIK
The certificate scope shown on the document covers the production of gears and sprockets, excluding product design.
Our services cover drawing-led manufacturing and collaborative process review. Product design is outside the certified scope.
Verify in the official IATF Customer Portal ↗PROFESSIONAL ENGINEERING QUALIFICATION
Issued by the Chongqing Professional Title Reform Office·
PARTNERSHIPS
YIYE supplies gears and sprockets for domestic and international power-equipment and machinery manufacturers.

PRODUCT APPLICATIONS
Explore physical product samples for engine timing, chain transmission and oil-pump transmission. Select a sample to review its details and discuss your drawing.

Engine timing
A crankshaft timing gear sample for discussing tooth geometry, mounting interfaces and drawing requirements.
View product details →
Chain transmission
A double-row sprocket sample for reviewing the tooth count, row arrangement and part interfaces.
View product details →
Oil-pump transmission
An oil-pump gear sample with module 1.75 and 22 teeth, for model comparison and drawing-led enquiries.
View product details →YOUR NEXT PROJECT
EMAIL CONTACT
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