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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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