NB/T 47065.1  支座 A 3444

47065.4 A3444

WN400-63RF

47065.3 B5473

ASME B16.47-2025法兰 WN1100B-300 RF B=1090 A350 LF2 CL1

PL100(B)-2.5 RF40

WN 80(B)-16 RF

WN 40(B)-16 RF

PL 250(B)-10 RF

wn50(a)-25 rf sch80s/J H46/51-11ch40F/

BL300-6 RF959RF S=4290��m000 RFiB)-150400 RF，SRp