GB/T 12459  弯头 DN 50-Ⅱ-390ELSR

DN 50-Ⅱ-3 90ELSR

B WN 1000-150 RF S=12

SO 100(B)-25 M7.5

wn400(b)-16rfs=1

WN400-600RFR/-3/u008

BL 100-25 RF

wn25(b)-10rf1001F25RFRMS0�X@w5@RFSc1=f12

BL80-150 RF0-600 RF sc0

WN 80-150 RF

wn125(b)-63fm.50 H=165?passport/loginf RFmpamb146��@F/u0