zincum

This paper has introduced the green-protection zincum-chromium coat, i n ianther word, it is "DACROMET" coat, it is one kind of liquid that confected from zincum flake alumimium flake chromate flake.

本文详细介绍了绿色环保型锌铬涂层即“达克罗”涂层,它是以锌片、铝片、铬酸盐等配制而成。

The content of the available ferrum enhanced by recycled straws, but that of the available zincum, copper and manganese had no changed obviously in soil.

秸秆直接还田高了土壤有量,但对有铜、有锌和有锰量影响不大。