news trimethylhydroxyethylbisaminoethyl ether cas83016-70-0 ecss-q-st-70-02c certification for satellite propellant valves trimethylhydroxyethylbisaminoethyl ether: "guardian" of propellant valves in the vast universe, sate... 03/2078Trimethylhydroxyethylbisaminoethyl ether CAS83016-70-0 ECSS-Q-ST-70-02C certification for satellite propellant valves