Tenders for Gem Bids For Pressure Switch With Chemical Seal Unit, Rangemmhg : - 760 To 0, Diaphragm: Hastalloy-C, Pressureswitch With Chemical Seal Unit, Range Mmhg : 1 To10 Kg/Cm2, Diaphragm: Hastalloy-C, , Differentialpressure Switch With Chemical Seal Unit, Rangekgcm2 : 0.7-7, Diaphragm: Hastalloy-C, Differentialpressure Switch, Range Kgcm2 0.7-7, Processconnection: High Pr