HG/T 20592  法兰 PL 450(B)-6 FF’آ ذ¨-FSch80F�

PL 450(B)-6 FF’آ ذ¨-FSch80F�

BL450-10 RF

SO 50-150 RF.ht.6S-1150-

WN 20(B)-40 M S=2.9

WN 25-150 RF

WN 500-150 RF Sch10S

WN300-25RF=2=2Bu00c2/ b=49Sch80SRF Sch400S=10 ã¦å8u=FRFch3=10/=

3-FM 600-1.6/50-111

B WN 650-300 RF Sch40S

3 C3 B=18.53