HG/T 20592  法兰盖 BL 150-100 RFRF6

47021 C-RF600-0.6=1

BL150-100RFRF6

BL400-6RF6 Rpam86FF-114УЅ03850

wn300-300 rf,s=10/

bl15-40 rf1sc050(b)-40rfe=2

WN65(B)-40FFMRF Sch80 RF6f0RFu0c0006

WN 50(B)-16 RF S=≥4

wn150b-100mFf RF5rfB1=s=5

SO 20B)-25 T5B=1F96

BL80-16 RF d=45.=5 M02F3 D=pam