GB/T 12459  同心异径管 DN 1100×15-Sch20RCFF D=490 C

DN 1100×15-Sch20 RCFF D=490 C

SO 100-25 RF7023 RF10/.0/54-115

SOP FF 5K 20A09/30/70-1c3/u00

耳座 B3=28b-6

WN 350(B)-25 RF6RF(tml30-26/55f 8�7.FR�-1671a5 RJ6)-0F.6R…°pl1

47023 fm 800-2.5.0/70-1256

PL80(B)-10 RF H1=100rj

DN300-PN100 WN RF

WN