Profile: Dongguan Hopewell Silicon Plastic Tech Co., Ltd. is a manufacturer of silicone valves, silicone lenses and custom silicone components. Our products include silicone control valves (cross slit valve, duckbill valve, umbrella valve), silicone optical lenses (LED silicone optical lenses, silicone linear lenses), customized medical components (medical silicone wound drainage ball, medical midwifery silicone airbag, medicine bottle stopper), silicone protective mask, facial cleansing brush, silicone watch band, silicone sealing ring, and silicone protective sleeves.