theconstructionofthepipingworksforthetenderedworksiintheethyleneplemainlycoversthepipinginstallationforthecrackingheaterarea,quencharea,pressionarea2,pyrolysisgasolinehydrogenationarendthespentalkalitreatmentarea.thequantityforthepipinginstallationworksamountsareabout91,034metersandtheinvolvedconstructionmaterialsofthepipingincludecarbonsteel,lowtemperaturesteel,stainlesssteelaswellaschromemolybde...