3C CARTRIDGE SEAL

Mechanical seals; mechanical seals of metal; mechanical seals, not of metal; mechanical seals of metal with fluid circulation function; mechanical seals, not of metal, with fluid circulation function; fittings of mechanical seals of metal; fittings of mechanical seals, not of metal; components for mechanical seals, namely sliding rings for mechanical seals being parts of machines; components for mechanical seals, namely sliding rings not of metal for mechanical seals being parts of machines; diamond-coated mechanical seals; diamond-coated mechanical seals, not of metal; mechanical seal devices being parts of machines; sealing devices being parts of machines; rotary joints [parts of machines]; rotary couplings [parts of machines]; shaft couplings being parts of machines; rotary unions [parts of machines]; pumps with mechanical seals.