GianTek Quartz Material (Shanghai)
Co.
Chinese manufacturer of quartz tube, rod, plates/discs and other custom fused quartz products for a wide range of industrial and laboratory applications.
www.gian-tek.com/   Science: Instruments and Supplies: Laboratory Equipment: Glass Products and Accessories  

Quartz Plus, Inc.
New England's largest stock of fused quartz and borosilicate items. Custom requests and international orders are welcome. Credit cards accepted.
www.quartzplus.com   Business: Materials: Crystal and Glass  

Nova Crystals Ltd.
Producer of custom glassware and ceramics. Able to produce complex shapes in fused quartz, alumina, and alumina-zirconia.
www.novacrystals.ns.ca/   Business: Materials: Ceramics  

Precision Glass Products Co.
Fabrication of fused quartz and glass components including quartz jigs and fixtures. Pennsylvania.
www.pgpcompany.com/   Business: Industrial Goods and Services: Optics: Optical Components  

Ruska Instrument
Manufactures digital pressure calibrators, controllers, and indicators, deadweight testers/gauges, piston balances, fluid phase behavior instrumentation, miscibility apparatus, high pressure pumps, fused quartz or fused silica components.
www.ruska.com/   Science: Instruments and Supplies: Laboratory Equipment: Mechanical Research  

Pyromatics Corp.
High purity molded fused quartz products for state of the art applications.
www.pyromatics.com/   Science: Instruments and Supplies: Laboratory Equipment: Glass Products and Accessories  

Nova Crystals Ltd.
Producer of custom parts made of glass, fused quartz and ceramics.
www.novacrystals.ns.ca/   Business: Materials: Crystal and Glass  

Technical Glass Products, Inc.
Fabricators and suppliers of fused quartz and borosilicate glass products. Custom fabrication and glassblowing for industry and research. Glass tubing and rod.
www.technicalglass.com/   Science: Instruments and Supplies: Laboratory Equipment: Glass Products and Accessories  

Srinivasa Products
Makers of fused quartz and borosilicate glass products.
www.srinivasaproducts.com/   Science: Instruments and Supplies: Laboratory Equipment: Glass Products and Accessories