近年来，铁催化剂由于其成本低廉而且绿色无毒，引起了人们的广泛关注。
Recently, iron catalysts have received much attention due to their lower cost and environmental impact.
以及结合现代科技- - - - - -釉中烧制工艺，使实用餐具无铅无毒，系绿色环保用瓷，具有较高的实用和收藏价值。
And the combination of modern technology the middle glaze firing, so that practical utensils unleaded non-toxic, use of green porcelain, practical and has a high collection value.
改性淀粉絮凝剂具有绿色、无毒、价廉、易于生物降解等优点。
The modified starch flocculant has a series of virtues such as green, non-toxicity, low price and biodegradability.
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