GB/T 12459  等径三通 DN 80-4.5TSfrRFF6S=12 B=299

DN 80-4.5 TSfrRFF6S=12 B=299

wn250-16 rf s8000

pl250(b)-16 ff b=4 fRF)-60E2

BL25B-10 RF-300036 D3

BL50(B)-16 RF013/1.0F3c6 f5 RFžâ rf0ch4

WN250-300 RF S=10rfch80/6RRrfB0 RF

WN 50-900 RJ H/

BL20-300RF= S=86RF00-0.0RF0-1RF414 l=30 d4s==105 schF2

WN15