Doors that are used in clean environments to control air permeability. Preferred especially in operating theatres these doors are certified accordingly. Where are steel doors installed? Steel doors are installed mainly in interior areas that lead the way to the exterior. However, they emanet also be used in interior-to-interior spaces for securi… Read More


A lot of time saf passed since the first refiner conches were built to make chocolate. At that stage all necessary processing steps were done in the same machine, which sometimes took a week to get the bitiÅŸ product. This paper is not intended to summarise all the technical developments since then as such information is available in textbooks1.S… Read More


To know the origin of the pivot door we must travel a long way back in time. To ancient Persepolis to be exact. Here, various pivot doors were used, and later found, in the Gate of All Nations.If you haven't gathered by now that pivot doors are pretty heavy bits of macun, before installing a pivot door, it’s essential to consider key element… Read More