Chengdu chang Yuan shun Co., Ltd

E GLASS MARBLE

E glass marbles are the main materials for producing E fiberglass and fine E glass wool. Our capacity is 40,000mt per year. Exported to many country, good reputation earned.

Specification: 18.5—20.2mm
Quality requirement: According to JC935-2004Standard

Chemical Content:

SiO2: 54.1±0.5

Al2O3: 14.6±0.4

Fe2O3: ＜0.5

CaO:16.6±0.3

MgO:4.6±0.3

R2O: ≤0.8

B2O3:7.0±0.5

Physical index:

Density: 2.5570±0.01g/cm      

Melting point: 836±10℃