| http://www.w3.org/ns/prov#value | - HADsiev??? 3A Normal Molecular SieveHADsiev??? 3A normal molecular sieve can be used to dry petroleum pyrolysis gas and unsaturated hydrocarbon materials, such as ethylene, propylene, butadiene, acetylene and more, or benzene, toluene, xylene and other solvents, such as methanol and ethanol.
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