Advanced Tech Service

The world and Technology

Browsing Posts tagged actualidad-politica

Professions such as stewardess and model are inevitably associated with the image. Requirements to work in these posts are as varied as the number of people dedicated to them. Presented in an agency with a professional photo book however, supposes a great advantage over the other candidates. In fact, in many offers of employment they […]

A ball mill usually has a grinding material which could be stainless steel balls, ceramic balls incluso flint pieces. These balls are necessary for the ball milling process because when they grind against another material, this material is crushed into fine powder. Industrial fine powder ball mill is generally used the rolling bearing, which has […]