... goods:We named this kind of fitting as PPR male thread union.This kind of ppr union constitutes by two ... parts. Part one – brass (59% copper, 41% alloy) thread; part two – PPR (100% new polypropylene) plastic kit.The ... thread from of the brass thread can be 1/2”, 3/4”, 1”, 1 ... -1/2” or 1-3/4”M (male means the brass thread is raised). You can join or link the ...