... your cost. The material of impeller can be bronze,copper,brass Sand casting impellerMaterials: ASTM83600 ,C3600 ,SS201,SS304,SS304L,SS316,SS316LDiameter ... export to USA, Canada and KSA for 5 yearsShandong Alldohua International Trading Co.,Ltd Andy.Song Manager Add:Room809,D Building ... Road,Zibo,Shandong,ChinaTel:0086-18653371891 Fax:0086-533-3155455 brass impeller