Donghai 99 Quartz Technology Co., Ltd.
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Donghai County Ruihai Trading Co., Ltd.
🇨🇳 China
201511-50 peopleManufacturer/Trading CompanyOEM manufacturer
Product customization
Low MOQ
Key market
🇹🇼 Taiwan
Description
Donghai County Ruihai Trading Co., Ltd., established in 2015 and located in Lianyungang, China, is a manufacturer and trading company specializing in high-tech materials. With 11 to 50 employees, the company is ISO 9001 certified and operates a factory in Donghai County, known as the "Chinese quartz Center." They are a contract manufacturer primarily focused on quartz glass products for the quartz, semiconductor, fiber, and solar industries. Their extensive product range includes quartz plates, windows, observation windows, various quartz tubes and rods, quartz parts, boats, blocks, cleaning tanks, crucibles, beakers, and specialized quartz tooling for semiconductor applications. They offer OEM and ODM services, customizing products based on customer drawings or requirements. Utilizing high-purity raw materials from domestic sources, GE, and Heraeus, Donghai County Ruihai Trading Co., Ltd. exports a significant portion of its quartz products to Taiwan, Japan, South Korea, the United Kingdom, the United States, Germany, France, and Russia, among other countries. They also produce crystal products and glass smoking pipes.
Semiconductor Experiments Field Accept Customized Transparent Fused Silica Quartz Glass Wafer Boat$0.1
Polished Round Bottom Transparent Quartz Ring Boat$0.1
Customized Size 10mm 14mm 18mm Male Female Joint Quartz Banger for Smoke$0.75
High Purity Polishing Clear Quartz Boat with Ring$0.1
Lab Use Clear Quartz Combustion Boat with Ring$0.1
Quartz Boat Clear Fused Quartz Boat for Lab$0.1
Long and Thin Quartz Glass Boat Clear Quartz Boat Lab$0.1
Custom Semicircle Quartz Boat Flat Bottom Quartz Glass Boat$0.1
Quartz Boat for CVD Process in Semiconductor Fabrication (Quartz Boat)$0.1
Solar Panel Accessories 8 Inch Ge 214 Quartz Alloy Boat Quartz Boat$100
Customized High UV Transmittance Purity Quartz Wafer Carrier Quartz Boat$100
Fused Quartz Boat Laboratory Instruments Quartz Boat Clear Quartz Glass Combustion Boats for Lab Crucible$100
Donghai Kaikai Quartz Products Co., Ltd.
🇨🇳 China
200351-100 peopleManufacturer/Trading CompanyEstablished brand
ODM manufacturer
Product customization
Low MOQ
Shipments
20
Key customer
SOLAR
Key market
North America
Description
Donghai Kaikai Quartz Products Co., Ltd. is a specialized manufacturer and trading company established in 2003, located in Donghai County, Lianyungang—widely recognized as the quartz center of China. The company operates a factory facility between 1,000 and 3,000 square meters with four production lines and an ISO 9001 certified quality management system. With a workforce of 51 to 100 employees and a dedicated R&D team, the firm integrates design, development, and advanced further processing to deliver high-purity quartz solutions.
The company's extensive product portfolio includes fused quartz tubes (ranging from OD2-900mm), UV-stop and twin quartz tubes, quartz plates, rods, and optical windows. They also manufacture specialized laboratory and industrial components such as quartz tanks, boats, crucibles, flanges, joints, and distillation equipment. Beyond industrial applications, the company offers crystal singing bowls and tuning forks.
Donghai Kaikai Quartz Products Co., Ltd. provides comprehensive OEM, ODM, and design services, leveraging an investment of over 5 million Yuan in their processing workshops to support custom manufacturing based on client drawings or specific dimensions. Their annual revenue is estimated between US$2.5 million and US$5 million, serving international markets with professional quartz processing and supply chain capabilities.
Milky Quartz Flange and Ring (KK04)
Fused Clear Quartz Tube (KK01)
Clear Quartz Tank/Container (KK009)
Frosted Glass Bottle Process (KK05)
Milky Quartz Insulating Flange
Fused Clear Spiral Quartz Tube
Milky Quartz Flange and Ring
Polished Clear Quartz Plated
