Sparklers contain small pieces of iron. When you burn the iron it reacts with oxygen to make iron oxide, creating the sparks we see. When a sparkler has finished burning, you’ll notice that the ...

Making steel produces a lot of greenhouse-gas emissions. Now, construction is underway in Sweden on an industrial-scale plant ...

In summary, the low-grade zinc oxide coefficient has slightly decreased. According to SMM, market activity is expected to further weaken due to the Chinese New Year, and some low-grade zinc oxide ...