HG/T 20592  法兰盖 BL 900-10 RF M600 h=1-40/п┴п

BL900-10RF M600 h=1-40/п┴п

wn80(B)-600 RF SCH4003.5 RF=12F=9RF

wn400-16 g1B S=12pampa1h40/h1

wn300(a)-600 RF L4M0gS.4F0s4/δ

WN 65(B)-25 RF S=7c3/u00af Rpampampwd=/C

SO 150-16 RF12 f1=4 c=466rf9-10040ch800-0.

DN100-PN100 WN M Ⅱ S=6

so32-16RFB1=