Shandong Ruyi Science & Technology Group

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Jining, Shandong Province, CN

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Patents Grantslast 30 patents

Information Patent Grant
Embedded type system positioning spinning method
- Patent number 7,913,483
- Issue date Mar 29, 2011
- Shandong Ruyi Science & Technology Group
- Yafu Qiu
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING