GB/T 12459  异径三通 DN 750×750×450-Sch120TR

DN 450×450×750-Sch120 TR

WN 50(B)-160Ms=RJc2

BI 450â0/0 rf b=3=200F

bl500-6m/f sc850-Sch80 TRRFF2550S00

WN1000-16FF/1=-fpqrf4 h05T65155RF2 RF5N300(B)-1

WN150-150 RF B=154�žB=ғЖ’

PL100(B)-16 RF f1=12

SO 2 1/2"-150 RF

wn300-1500rf sï