Hydrolysis of chromed leather wastes catalysed by protease and alkali

酶和碱对含铬革屑的催化水解

The doors still open on hidden hinges and the “ Skylark ” insignia is still visible on the sill plates but they are now chromed .

门仍然开启在隐藏的枢钮和“云雀”上勋章仍然是看得见的在海槛上屏但是他们现在被铬。

With the synthetic CSL type acrylic resin , the affinity to chromed hide powder have been determined , the filling & retanning application experiments have been done .

用合成的CSL型丙烯酸树脂，与皮粉进行3亲和性的测定，对革进行了复鞣&填充应用实验.

The feature , technology process of production and application in DF7D locomotive at Jinchengjiang Locomotive Depot of cylinder liner chromed after excessive wear were presented .

介绍松孔镀铬气缸套的特点、工艺过程及其在金城江机务段东风7D型机车上的运用效果。

Rolls machined from high-grade tool steel , which has been treated to a hardness of over 60 Rockwell C and hard chromed , precision ground as well as polished to a mirror surface .

辊由高级工具钢制成，经过热处理，洛氏硬度超过60，并经镀铬和镜面抛光处理。