离岸价格
获取最新报价12 ~ 15 / Piece
|Minimum Order
位置:
china
最小订单价格:
最小订单:
150 Kilogram
包装细节:
15kg/barrel
交货时间:
within 10 days
供应能力:
-
付款方式:
T/T, Western Union, PayPal
联系人 Mr. li
5,kaiyuan st, Jinan, Shandong
The airport glass bead used for airport runway efficiency provides the brightest and safest airfield marking available.
These beads are coated with a layer of aluminum on half sphere, provide five to seven times the retro-reflectivity of ordinary glass bead.
The larger gradation size,higher percentage roundness, smooth surface and hardness qualities enhance the long-term reflective performance of airport markings even under wet or night conditions.
Specification:
composition
|
Program |
SiO2 |
CaCO3 |
Al2O3 |
MgO |
Na2O |
Fe2O3 |
|
GLASS BEAD |
****6% |
****7% |
0.*-1.0% |
1.*-1.5% |
1.**1.5% |
*-0.9% |
Other spec:
Refractive index: 1.**1.8
Roundness: ≥ *5%
Appearance: sliver grey
Size Range: ******0um
Density: 2.2±0.1 g/cm3
Hardness(Mohs) : 6.5
Softening point: > 5*0 ℃
