GB/T 12459  弯头 DN 15-490EL500-1.0m‚¬Â

DN 15-4 90EL500-1.0m‚¬Â

BL20-150 RF Sch

PL40-10Ff0 1 M S402WN40-1500 R/00 RF/

bl100B-16RFrf2 d=585 f1F0rj-40mG7.1R1150rf sch40sf6

WN 40(B)-25 M S=3F25 rf

WN 40(B)-40 RF S=10.6/ &-10

JSO100x150-40T40s.6 r

WN150-150RF S=6 H0040 s=60-F878

LWN 200-30