GB/T 12459  等径四通 DN 500-5CRS00-1.601 H=16

DN 500-5 CRS00-1.601 H=16

BL300-300 FF L=18-600RFF0RFRF=4

WN80-25RF S=10.5 &ampampampampampn

PL 132(B)-16 RF05F-40fRF S-4.0/80-1

pl15-40fm750-N=10 S

PL80-40 RF/5-16R

BL32(B)-10FM 18片 304

BL150A-16 RF0SfF0Rch8RSchh S=5

WN50-150 RF