Zhejiang China Value Co., Ltd.

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Wenzhou, CN

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Stem shoulder seal with double rings and an assembly of independent...
- Patent number 8,439,330
- Issue date May 14, 2013
- Zhejiang China Value Co., Ltd.
- Changxiang Xu
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

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