Technical itemReference specification
MaterialCommercial soda-lime glass; clear, colored, patterned or opaque
Diameter RangeCommon 9–17 mm, plus 25 mm and 35 mm; custom programs reviewed
Precision GradeCommercial marble quality rather than bearing-ball grade
ToleranceControlled by the agreed precision grade, drawing or purchase specification
HardnessApprox. Mohs 6
DensityApprox. 2.45–2.60 g/cm³
Surface FinishFire-polished commercial finish
Roundness / SphericityControlled according to the agreed precision grade and inspection method
Temperature ResistanceApplication, load, atmosphere and material-grade dependent
Chemical ResistanceConfirm exact fluid, concentration, temperature and exposure time
PackagingBulk, small-quantity, container, bag, carton, export pallet or customized packing
ToleranceApprox. ±0.5 mm typical; project limits by agreement
AppearanceClear, solid color, swirl, cat-eye or approved custom style
InspectionSize, breakage, major visual defects and color sample as agreed