GB/T 12459  弯头 DN 20-Ⅱ-390ESpampampampa

DN 20-Ⅱ-3 90ESpampampampa

WN100A-100RF5RFR16/ S=39/5B0ampa)RF

so500-25m /

WN100(A)-16 RJ S=62000-1

BI 1400 h=50

BL300(B)-10GFF/

pl25-25rf20592-150-6rf5RFh1.0/

WN50-600 RF SCH40s

WN65(B)-16 RFrjF00 MFM HG/T204H8065MHG/150 R390 H=46 F(B)0t20615-259f-