The pure nickel freeze drum which was a post-treatment equipment for the production of chloroprene rubber was manufactured using nickel as main material.

用镍做主体材料，研制出氯丁橡胶生产用后处理设备纯镍冷冻转鼓。

youdao

The catalyst for the esterification has many advantages such as easy preparation, low cost, high activity, simple post-treatment, being non-corrosive to the equipment and no pollution.

与合成该产品的其他催化剂相比，本催化剂具有活性高，用量少，价格低廉，制备简单，后处理简便，无废液排放等优点。

youdao