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* Reducer 4"*3"
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Reducer 4"*3"
2½" flange valve  
90˚ 4" elbow、180˚ 2" elbow、90˚ 2" elbow  
Wood mold for foundry work--used around the 60s  
1. The early oil transportation  
Reducer 4"*3" ABOUT >>
Source: CPC Corporation, Taiwan (the original is in the exhibition hall of the Kaohsiung Oil Refinery) 
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