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
铬涂层即“达克罗”涂层,它是以
、
、铬酸盐等配制而成的溶液。
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铬涂层即“达克罗”涂层,它是以、、铬酸盐等配制而成的溶液。
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
高了土壤的有
铁含量,但对有铜、有
有锰含量影响不大。
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