NB/T 47065.1  支座 BⅠ 1218

BI 1218

DN500-Class600 WN RF S=30

LWN 50-150 RF B=52 H=72

WN 100(B)-16 RF

WN 50(B)-25 G Sch40S000ff0-17 HBRF70h09417612rth80S rf

BL280-16 RF

BI 73493

47065.3 B7387

PL 50(B)-16 RF

PLp8C4RF�1@RF8@RF@08ta°0m00S W s13FF0(B)000Jm0-R RRF01@h4014/36RFRF8