Grinding Glass Beads borosilicate

Loose Beads Material:

Crystal, Lampwork & Glass

Place of Origin:

Jiangsu, China

Brand Name:

SAILING

Model Number:

GJ-II

Beads Colour:

Clear

Name:

GJ-II Grinding glass beads

Chemical composition:

SiO2, AL2O3, CaO MgO Na2O B2O3

Physical characteristics:

Proportion:2.5g/cm3

Artificial proportion:

1.5g/cm3

Micro-rigidity:

large 680kg/mm2

Diameter:

0.6-0.8-----3.5-4.0mm