Sapphire Ball Manufacturers
Swiss Jewel Co. (Philadelphia, PA)
Manufacturer Our ruby and sapphire balls have typical tolerances of sphericity 0.625 micron and diameter ±2.5 micron (Grade 25). In addition to stock sizes we can offer most standard sizes in millimeters and inches. Custom diameters also welcome. |
Boen M & E Co., Ltd (Dalian) (Dalian, China)
Manufacturer, Service Company |
General Ruby & Sapphire Co. (Odessa, FL)
Manufacturer, Contract Manufacturer |