FOB Price
Obtenir le dernier prix12 ~ 15 / Piece
|Minimum Order
Localité:
china
Prix de commande minimale:
Commande minimale:
150 Kilogram
Packaging Detail:
15kg/barrel
Delivery Time:
within 10 days
Supplying Ability:
-
Payment Type:
T/T, Western Union, PayPal
Personne àcontacter 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 ℃
