GB/T 12459  异径三通 DN 700×700×250-Sch30TR

DN 250×250×700-Sch30 TR

20592 SO50B-16 RF RF00=18-25rf=4)0 S=6/0S

sw25-16 RF Smpamp

WN 500(B)-40 RF S=1209R

PL 350(B)-10 RFRF00-0/=8

BI8000-10.2h1=8�850--301S=3.5

BL 25-300 RJF RFe061500-F bl/

SO25-300 RF26F/Fh1

WN32B-160RF0RF8)-11

wn1200-150rf S