HG/T 20592  法兰 WN 250-16 RFRF910.80SL

WN250-16RfRF910.80SL

3 FM 1000-1.0 δ0=6

PL 50(B)-16 RF

WN25(B)-40 RF S=5.5

BII 31781F� RF8

WN 50(B)-16 RF S=10

47065.3 B7554

WN 50(A)-63 M S=4

WN 80-40 RF S=74716 RF��@RFF@FF-R0M2FF@0 BL RF@0-F29220SF@RF0�F-16 RF S=4

SO 1"-150 FFh7001R