GB/T 12459  同心异径管 DN 500×350-14RC0 R

DN 500×350-14 RC0 R

» pl50(a)-10rfRn450-60

DN25-PN6 PL FF FRJ@6R100-@F0

WN100(B)-16 RF1080

WN500-300RFB=472sm=6 RFF(A)600-1

PL 150(B)-25 RFH pl1Sc10 RF50-4.0RFF@443RF@3

PL 300(B)-40 RF

BI 700908733RF Sa.5

WN200(B)-16RF S=6mm0II8æ°Â625RF

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