Tenders for Supply of Procurement Of Air Flow Relay Etc.. Air Flow Relay For Emu/Memu Main Rectifier Specification /Drg. No. Model : Gm 021.00. D4c - 5 Of M/S. Switzer Or M/S Eversure Drg. No.: Eee/Afr/05 Rev-1 & Hood Eee/Afr/Hood/01 Similar To Clw Specification No. :Clw/Es/R-34 Alt-C.