HG/T 20592  法兰盖 BL 100-16 RFr20/231s

BL100-16RFr20/231s

WN 80-600 M-0.6rfRFa)-1A=5=2.o2-41650mRF rf-1.B)-16RF1o.01.0ุฃย0-0.6 h

BL25-40 Mm602rfSch80F SchF/S

SO 80-150 RF5-XX�С

WN100-150 RF Sch40 RJ

DN450-Class150 WN R

WN20A)-16 FMconten80r91.02-02

WN 300-150 RF24r0(a R�s=0ch0S