Shanghai Nanhui Light Glass Instrument Co., Ltd. [China]

Heat stability, high compressive strength, good chemical stability was

1)Thermal StabilityPlane-type   260 ° C2)WithstandPlane-type    6.27 MPa (64Kgf/cm ²) 8.33 MPa (85Kgf/cm ²)                   15.68 MPa (160Kgf/cm ²) 31.36 MPa (320Kgf/cm ²)

 3)Chemical Stability:

Water resistance: <=0.5mg/dm ²

Acid resistance: <=0.5mg/dm ²

Alkali: <=80mg/dm ²

reflex gauge glass