... of fabric reinforced rubber body and metal flange or loose joint ,used at shock absorber and compensate for displacement.JGD mean ... pharmaceutical, petrochemical, shipping, pumps, compressors, fans and other piping systemsbr> [Media]:Common type used to transport -15 to 120 centigrade, ... compressed air, water, sea water, oil, acid and alkali. Special type used to transport -30 to 250 centigrade of the ...