- Worldex
- Silicon Focus Ring,Quartz GDP,Quartz Shadow Ring,Silicon Boat,Silicon Insert Ring,Silicon Electrode.
- Address:360,Hanggok-ri,Goa-eup ,Gumi-si
- Young Shin Quartz Co., Ltd.
- Quartz tube for CVD process in Semiconductor fabrication,Synthetic Quartz Glass Wafers,Quartz tube for CVD process in Semiconductor fabrication,Quartz boat for CVD process in Semiconductor fabrication,Synthetic Quartz Glass for Photomasks.
- Address:149-3, Hoejuk-ri, Gwanghyewon-myeon, Jincheon-gun
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