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.

片狀順酐（馬來酸酐）由于流水線的切割刀鋼度較為強，而順酐自身是結晶，因此所切的片的樣子沒辦法操縱，沒辦法保證勻稱，會有許多粉末造成，封進包裝袋子后，商品一受潮，一擠壓成型，還是非常容易粘成塊狀，導致加料的不便捷，并且量上提不上，落伍的加工工藝淘汰也不新奇了。

                                    Not to mention, out of date processing technology is not new.

受原材料苯的上漲，各地域剛開始挺價實際操作，苯法加工廠受原材料上漲危害團體上漲，并且廉價貨慢慢得勢，持貨商沒有響應積極主動，廉價出不來，援手主要加工廠，但是受中下游產銷率不夠危害，預估上漲力度不容易很大，等主要加工廠出具體指導價錢。

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.