GB/T 12459  弯头 DN 100-Ⅱ-545EL.5

DN100-Ⅱ-5 45EL.5

bl20-150 mLF

B WN 30"-150 RF B=746.16

bl15-63 rjSc95300rfsch80s0RF B=429mpampampampampampampampampwd=

pl200(b)-16rfb1=161c=2兰内径b1b1a6

PL 200(B)-10 RF D=345/

WN25-40RJ1.0rhMFh40fpampampq

WN 40(B)-25 RF S=7.1

BL125-6fm60RF