NB/T 47021  法兰 RF 900-1.6 δ=80

1 RF 900-1.6 δ=80

WN50(B)-40 M S=

BL 4"-150 RF

SO 25(B)-16 RF

SO150-150RFmpampa-16

PJ/SE 200(B)-10 RF Sch80S

WN15 -160fm16 RFt3.5

WN 100-150 RF S=8

DN40-PN16 BL RF Ⅱ

B WN 800-300 RF S=24 Sch40SS=4.780 r��R RJ Sch10S���В РўТӣР  RF