Diamond engineering industries manufactures nylon conveyor belts by laminating number of plies and consolidating and vulcanising them in special press. The company provides these conveyor belts with the construction of reinforcement of polyester, rayon, nylon and cotton [canvas]. These conveyor belts are protected from mechanical damage arising from impact or ingress of moisture by a rubber. Rayon and polyester used in making these conveyor belts are both high modulus materials and have great disadvantage of losing strength when wet. Nylon fabrics in these conveyor belts are designed in three layers and combined together they create a monopoly construction by covering both sides with rubber.