Precision-drawn fused silica capillary tubes engineered for laboratory instruments and high-purity applications. Manufactured with 99.99% SiO₂ content, these quartz capillaries deliver exceptional thermal stability, optical clarity, and chemical inertness. Custom inner and outer diameters are available to meet specific instrument requirements.

Each capillary tube undergoes precision drawing, dimensional inspection, and stringent quality control to ensure consistent inner and outer diameters, surface finish, and material purity.

• High-temperature furnaces, semiconductor diffusion and annealing equipment
• Laboratory quartz reactors and vacuum reaction systems
• Photovoltaic and optical fiber high-temperature processing equipment

Lianyungang Shengfan Quartz Product Factory is a professional manufacturer specializing in research, development, and production of quartz plates, quartz tubes, quartz flanges, quartz rings, cuvettes, and quartz instruments.

Located in China's Crystal Capital — Donghai City, Jiangsu Province, China, our facility is strategically positioned just 70 km from Lianyungang port, ensuring convenient transportation access.

Covering an area of 1,000 square meters, we employ over 30 skilled professionals and achieve annual sales exceeding USD 5.2 million. Guided by our core philosophy of Technology Orientation, Quality First, Integrity and Responsibility, and Sustainable Operation, we are committed to establishing an international enterprise with standardized processes and sustainable operational capabilities.

The company adheres to integrity in business, with extensive experience, reasonable pricing, quality assurance, and excellent after-sales service. We sincerely welcome customers to come and negotiate.