HG/T 20592  法兰盖 BL 50(B)-63 RF/CH31-150 rf s/59*B.5-25

47023RF350-1.f0004..SÃm rf s/59*B.5-25.0 î´=600(A)

BL300-150RF32f s= RF5sl5= sc4g10RR

2 RF 1000-1.6 � RF0 RF RF146592f3

BL50(b)-63RF/CH31-150 rf s/59*B.5-25

WN 80-150 RF Sch10SH

PL65B-16FF b= B H=32 K=55

PL350-10 RF5 s0-150Ramp0S1FF

WN 20(B)-16