GB/T 12459  弯头 DN 300-Sch1090ESRF Sc3

DN 300-Sch10 90ESRF Sc3

so125(A)-16rf

wn350b-10rfb

PL600-16RFHG/T

WN70-150RFSch9 WR4Class-1F5 RJfFkhc9-25

WN 8"-600 RF S=8u00 RF.6 RFc2@RF@443RF@AFF8RF ScRch40R

SO100(B)- 25RF

WN 1"-150 RF Sch40Smn03 ARSC0 RF

BL600-16 RF

wn 50-100 rf.6LRF81