GB/T 12459  弯头 DN 150-sch1090ELSh40/0-150

DN150-sch10 90ELSh40/0-150

WN350(B)-16 RF S=225 ht0c6046.M5 RF00801

WN20(A)-16 RF S=4

20615 BL25-300 RFh4

wn450-1500 rjF0sh

DN 1300×1300×800-Sch60 TR0- 1 S=9F6/=40

BL10-63 M00(B)-10613

so65(a)-16RF

SO 80(B)-16 RF D=199 C

WN80-300RF A=mprf D=/RF90/=