HG/T 20592  法兰 WN 50(B)-25 M S=3-scF B=290 rf40 FM 0F50-900 RB)0 RF

WN50(B)-25 M S=3-scF B=290 rf40 FM 0F50-900 RB)0 RF

B BL 700-150 RF

SO100-16MF-2c3/u8-Fmp

1 FM 500-0.25rfL801=5

pl450A-10RF.0rf600-02rj00RJ0

lwn 25-150 rf b=27 h=15

47023 Fm1100-1.6

47023 G1800-0.6135 S

SOH RF 20K A 40A

WN 350A-300 RF0RH=248+ RFsD