GB/T 12459  弯头 DN 80-Ⅱ-345EL

DN 80-Ⅱ-3 45EL

pl25-10rfk=75

A WN 1500-150 RF Sch120

SO50-300 RF

PL125(B)-16 RF b=3

PL150(B)-16 RF(.616

BI 700

WN80-900RJ

PL125(B)-16 RF

PL 50(B)-10 RFSpampampampa.0000-R.85p0 S=3.5@b=fs2@RF@4 RchF@443RF@AfFmpa��0860SFJ SRF Sch40�5RF2@F45050/F