HG/T 20592  法兰盖 BL 20-63 Mh=RFch4=42 h=95RF2003000җР

BL20-63Mh=RFch4=42 h=95RF2003000җР

PL125B-40 rf sch1F-tm R=.6 B=RF20592FF /JMX26605â

LWN 40-900 RJ=22 C=28ch10

BL 300-900 FF00-1F fF7S36Sch805RF/

WN32(B)-1500RJhg5@/

WN100-300 RF S=6.025 rf

SO 200-150 RF.6 è-6 RFR(37

wn32(b)-16 rf s 6/

DN450-PN