GB/T 12459  弯头 DN 15-Ⅱ-690EL

DN 15-Ⅱ-6 90EL

PL600-10RF(100-15/

PL350(B)-16RF/H.

PL100(B)-16 RFe/50-15F b2f1=2.51.XS-B)00-F/00-100(b)

SO500-10 RF=5870Fmfm=30S=8

SO65(B)-10 M Gtf1000-1120-300 rch40Surce=ch

WN 50-900 RJâ€300RF/ RF-

wn200-150rf schãSc

WN250(B)-16RF=3-1153 K80S