法兰 PL 650(B)-16 RF.6/116-2

PL 650(B)-16 RF.6/116-2

WN 200-600 RF00

3fm2100-1.0

pl125(a)-40 rf

SP40 RF2

DN 500×500×300-Ⅱ-5 TR2.5 �

gb/t9119 PL100(B)-10 RF

PL125(B)-16Gc

pl50(b)-16fF Sj063.5

BL 100(B)-900RF

pl50(b)-16 rf hg/t20615-2009

WN50-150 RF B=42.5�â¶fFB)- b=5 RF