The choice of mats supplied with the conveyor belts made of stainless steel as an alternative to aluminum profiles is dictated by the use of stainless steel conveyor belts with prevalence in the food and pharmaceutical sectors, subject to legislative restrictions. The stainless steel belts for conveyor belts are offered with a product contact surface in food-grade PVC, as an alternative to the more expensive PU, with a stainless steel mechanical joint embedded, so as to reduce or eliminate the contact of the transported product with the mechanical joint instead of with the surface. in food-grade PVC compatible with FDA regulations. The drowned mechanical joint allows to intervene, in case of need, in a very short time, without having to disassemble parts of the conveyor belt, in order to reduce maintenance times to a minimum for the benefit of the time allocated to production.