GB/T 12459  弯头 DN 100-Sch10S90E3Ds=100-100

DN 100-Sch10S 90E3Ds=100-100

lwn 50-300 rj MpampC=1

WN25-150 RF A=21.3=200/0.em5F

WN500-300 RF

BI 3250 RFshg20615 wn400-M’Ã�3020 d-

PL250(B)-16RF592 WN300-25

WN150-300 RF S=16 RF Sch40SRF Sch

DN500-PN16 WN RF Ⅱ S=9

BL100-63 RJ210-400

WN80(B)-4