Моят блог в Blog.bg
Постинги в блога от 09.07.2018 г.
09.07.2018 06:01 -
How to prevent the wear of ultrafine mill
For Ultrafine Mill, The hardness of the selected material must not exceed the range of the hardness of the material specified by the equipment. Otherwise, the hardness of the material will increase to a certain extent.
The point is...
The point is...
