ribbed belt Envelope,Tensile element (tensile cords),Compression element,Insulating element,Tension rubber ribbed belt Advantage:Envelope,Tensile element (tensile cords),Compression element,Insulating element,Tension rubberEnvelope:Special rubber-impregnated fabric that offers resistance to abrasion and total protection of all the belt body. Tensile element (tensile cords):Made of high quality ...