... 7,10, Copper-aluminum connecting pipe(1)Copper tube:OD:1/4,&3/8,&1/2,&5/ ... and aluminum pipe to connect both ends of the brass, to avoid the occurrence of this problem and ... corrosion of solder joints, leading to leakage of tube wear eye.Third, high cleanliness: as between copper ... install, move machine: aluminum than brass soft, copper-aluminum connecting pipe copper tube design is 1.5 times the ...