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The oil platform of Shengli Oil Field,Shangdong Province,China
OIP05053_144-0082

The oil platform of Shengli Oil Field,Shangdong Pr...

The oil platform of Shengli Oil Field,Shangdong Province,China
OIP05053_144-0083

The oil platform of Shengli Oil Field,Shangdong Pr...

Daqing Petroleum Chemical Plants,Daqing,China
OIP05055_43-0082

Daqing Petroleum Chemical Plants,Daqing,China