HG/T 20592  法兰盖 BL 350-63 RF3 Rt/invoke.022Cr

bl350-63 rf3 Rt/invoke.022Cr

DN 300-Ⅱ-5 90ELM-10RF1 5SCH40/uot16RF4.5u0SRs=90EL=2.5 d=33=2980 TA

LWN 50-150 RF Sch801jPT0-2 RF60-30

2 CM 1500-1.620Оҙ1=10

WN100(b)-16M5MC=45RFamp1r

WN 500-150 RF1

WN250-150 RF.840s RF S

47021 c-fm 700-1.0 пҝҪ5