The mechanical seals include automobile air-condition compressor seal, automobile seal, pump seal, industrial pump seal and so on. The seals can be made according to the customer''s requests. The material can be sellected according to your instruction( Stationary Ring: Ceramic/SIC/TC/Carbon. Rotary Ring: Carbon/SIC/TC. Secondary Seal: NBR/EPDM/VITON/PTFE/CR/Silicon Rubber. Spring & Other Parts: Copper/SUS304/SUS306/AL.). We can provide most typyes mechanical seal.