WalterTostoSpa:
ecopetrol_4
WalterTostoSpa:
ecopetrol_3
WalterTostoSpa:
ecopetrol_1
WalterTostoSpa:
20140505_5104-1
WalterTostoSpa:
Ecopetrol HDS Reactor
WalterTostoSpa:
Hydrotreating Reactor