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Contact Supplierab – 1 Estimated life of galvanized iron sheets in different atmospheric conditions | |||||
Zinc coating weight | Rural | Tropical marine | Suburban | Urban | Highly industrial |
gsm | Years | Years | Years | Years | Years |
600 | 40 | 40 | 30 | 25 | 15 |
375 | 30 | 30 | 20 | 17 | 9 |
300 | 20 | 20 | 12 | 10 | 7 |
180 | 8 | 8 | 5 | 4 | 3 |
100 | 6 | 6 | 4 | 3 | 2 |