
Covering & Composite Production
Fifty HKV-series covering machines support customized single-covered, double-covered and composite-yarn production.
Manufacturing Capability
Zhengnan's Zhuji manufacturing base brings material combination, structure development, sampling and customized production into one continuous system.
Discuss Your Manufacturing Requirement
01
Zhengnan operates an approximately 10,000 m² facility with more than 70 employees and 50 Jinggong Technology HKV-series covering machines.
Sampling, production planning and quality checkpoints sit within the same manufacturing organization, helping an approved yarn structure move into repeatable customized production.

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Fifty HKV-series covering machines support customized single-covered, double-covered and composite-yarn production.

Dedicated material and semi-finished-product areas support the movement of differentiated yarn inputs through production.

Sample development and production planning remain within the same manufacturing organization, supporting a practical transition into repeatable supply.

03
Confirmed material, structure and specification requirements provide the working basis for production.
Inspection work is organized around the project specification and relevant yarn-package checks.
Production and supply information is organized around the relevant project and batch requirements.

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Zhengnan maintains an active GRS scope certificate for specified yarn categories and processes. The current certificate, TE-ID TE-99952133, is valid from April 15, 2026 to April 14, 2027.
The scope certificate applies only to the categories, materials and processes stated in the certificate. A specific delivery requires the applicable Transaction Certificate. This statement does not mean that every Zhengnan product is GRS certified.
TE-ID TE-9995213306 / FAQ
Zhengnan combines covered-yarn manufacturing, customized development, material-combination expertise, quality management and production support.
Yes. The project discussion can consider the intended application, selected materials, processing route and validation requirement before the next development step is defined.
Packaging and winding format are confirmed according to the yarn specification and downstream processing requirements.
No. The active scope certificate covers specified yarn categories and processes. A specific delivery requires the applicable Transaction Certificate.
Share the intended application, selected or current material, processing route and validation requirement. Zhengnan can review how its covered yarn manufacturing and customized development capability may support the next project step.
Discuss Your Manufacturing Requirement