SIRVIS

MECHANICAL LEATHER PRODUCTS-NAMELY, COUPLING LEATHERS (WHICH ARE CUSHION ELEMENTS APPLIED TO UNIVERSAL COUPLINGS OR JOINTS), VALVE LEATHERS, DISCS (WHICH ARE SHEETLIKE USUALLY CIRCULAR CUSHIONS APPLIED TO VALVES AT THE SEATPORTION THEREOF, ALSO CONTACT OR IMPACT SHIELDING OR CUSHIONING ELEMENTS IN VARIOUS INSTALLATIONS), LEATHER PACKINGS, LEATHER GASKETS, AND LEATHER WASHERS