GB/T 12459  弯头 DN 50-790ESrf sch400-

DN 50-7 90ESrf sch400-

WN 200(B)-100 M0FM-1

WN50(B)-16 RF

WN25-150 RF

PL 200(B)-25 RF0/200-1.0/82-155n1

WN500-16 RF s=10

LWN100-40 M

pl250b-10ff

BL40(B)- 150RF/.6

PL100-16RF=3uga/compb-fr0c.6/f1.0-73RF400ScRFh40ch800527000/@fmRF50.6M.5-0.6M10RFS-40 R