Hot dip galvanized steel grating is the best choice for airport steel platforms. The steel bar grating with 30 × 3 mm thick load-bearing bars with a pitch of 30 mm and traverse bars at 50 mm or 100 mm is the suitable one. With a large impact resistance and the largest span amplitude. It has a long service life, it is general usage lifespan is around 40 years to 50 years.
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