ChatterBank3 mins ago
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I am not a great welding expert, but I know that the zinc of the galvanising will produce a lot of poisonious. I would clean off the galvanising around were you are going to weld and file or grind some of the surface off as it as alloyed to the steel. I would still have plenty of ventilation and possible use a flux. You can use a zinc paint to protect the surface again and make it look better.