GB/T 12459  异径三通 DN 200×200×80-Sch160TR

DN 80×80×200-Sch160 TR

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BL400-1500RF r80-1.6/m�RRFch7MS=6b=3F S=5R-1.6A=FM1400-4=5

WN40-150RFB=491-1.6RF0c26ffRB=1295.660SCH40S

NB/T47022 RF1400-1.6-F0RJF=do b=b

BL450-16 RFrj RF S=3SFmpa=8HFM=11406mn S0050552 X0-S rf d

SO450(