Dyseals is specialized in making mechanical seals DY502-53 in China. 30 years has witnessed that Dyseals is able to provide mechanical seal DY502-53 with high quality and competitive price. Dyseals is the right one you are looking for. DYseals is operating ERP system characterized with mechanical seal industry and tele-work and a state hightech enterprise in mechanical seals, Mechanical seal DY502-53 faces/rings, silicon carbide and ceramic shafts and sleeves/bushes/bushings, bronze sleeves, boron carbide and sic bullet-proof plates etc..Pump manufacturers and repairs and mechanical seal companies are welcome to establish business relationships.