... fitting : PP-R tool,ppr-fr-ppr pipe,PP-R coupling,PE-RT, tee, coupling, flange,PP-R elbow,PP-R ... tee... PPR pipe fitting, also ... called random copolymerized polypropylene(type 111)tubes, are a new generatiPPR fitting ... . Compared with aluminum multiunit tubes, PP-R tubes can be made into tubular products ...