Sliding doors suitable for any type of room: for normal temperature (0°C) and low temperature (-40°C) with modified atmosphere. Front and back sliding systems made of anodised aluminium, accessories made of stainless materials, rubber sealing gaskets mounted all along the perimeter of the leaf. 220V heating element in the version for low temperature or with diathermic level with oil bath. New PVC frame with rounded corners, compliant with EC health standards, studied, designed and created to be a higher quality product that is always seeking to be competitive. The system consists of an external fixed part and an internal modular part with a joint, through which various sections are fitted and adapted to the wall. This method offers significant advantages in terms of time, making assembly at the site extremely simple and quick.