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Hualian Steel Structure
Hualian Steel Structure
China National Standards of hot dip galvanized steel gratings
1. Galvanized steel grating feature:
1) High strength and light structure
2) Powerful anti-corrosion, durable and long working life
3) Beautiful appearance, bright surface
4) No dirt-rain-snow deposit, automatic cleaning, easy maintenance.
5) Good ventilation, day-lighting, heat-dispersing, resistant to sliding and explosion
6) Easy installation
2. China National Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products.
|
GB/T 13912-2002 |
||
|
Artical and its thinckness (mm) |
Local coating thinckness(um) | mean coating thinkness (um) |
|
Steel ≥6 |
70 | 85 |
|
3≤Steel＜6 |
55 | 70 |
|
1.5≤Steel＜3 |
45 | 55 |
|
Steel＜1.5 |
35 | 45 |
|
Castings≥6 |
70 | 80 |
| Castings＜6 | 60 |
70 |
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