以前的顺酐（马来酸酐）样子以粉末主导，由于马来酸酐、具备呛鼻和辣眼的味道，因此粉末对人的刺激性更大，并且生产量太低，因此慢慢被片状顺酐取代。现阶段还要制造粉末状顺酐的生产厂家基本上沒有，有都是作为高档独特顾客人群的商品在少量制造，不规模。
The former maleic anhydride (maleic anhydride) was dominated by powder. Due to the maleic anhydride, which has the smell of choking nose and hot eyes, the powder is more irritating to people, and the production is too low, so it is gradually replaced by flake maleic anhydride. At the present stage, there are basically no manufacturers who want to manufacture powdered maleic anhydride. There are only a small number of products manufactured as high-end and unique customer groups, which are not large-scale.
片状顺酐（马来酸酐）由于生产流水线的切割刀钢度较为强，而顺酐自身是结晶，因此所切的片的样子没办法操纵，没办法保证匀称，会有许多粉末造成，封进包装袋子后，商品一受潮，一挤压成型，还是非常容易粘成块状，导致加料的不便捷，并且生产量上提不上，落伍的加工工艺淘汰也不新奇了。
Not to mention, out of date processing technology is not new.
受原材料苯的上涨，各地域刚开始挺价实际操作，苯法加工厂受原材料上涨危害团体上涨，并且廉价货慢慢得势，持货商没有响应积极主动，廉价出不来，援手主要加工厂，但是受中下游产销率不够危害，预估上涨力度不容易很大，等主要加工厂出具体指导价钱。
Due to the rise of raw material benzene, all regions have just begun to support the actual operation of prices. Benzene processing plants have been harmed by the rise of raw materials, groups have risen, and cheap goods have gradually gained momentum. However, due to the insufficient production and sales rate in the middle and lower reaches, it is not easy to predict the rise. The main processing plants will give specific guidance prices Money.
