GB/T 12459  同心异径管 DN 80×65-Sch160RCF1fRB@000u1F6F@FSFS1@ch4SS54/5 RJB671 RFch4ch@47c

DN 80×65-Sch160 RCF1fRB@000u1F6F@FSFS1@ch4SS54/5 RJB671 RFch4ch@47c

pl100(b)-10 ff d= k= bb

SO 200-300 RF S=

WN65(B)-63RF S

bl25-16rf

DN 32-Ⅱ-3 180ES

WN15(B)-100 TG

WN500-10RF S=8

SW20-100M50RFmp16

BL 200-40 RF��@4п�RF0@RF�M5 RJScF&@R S=5B= s