GB/T 29465  法兰 RF 600-0.6fbl19.5-F0=4

5 RF 600-0.60fbl19.5-F0=4

PL50-16FF b=2 AA160RF S150 RF@m28.F00CH80RS

so300(b)- 16rfR4RF600-100 RF=

BL 500-900RF60/6 RF B16-0.6hCH4rf hg008RF16@4

WN 200-300 RF Sch1016 RgR0@PF@4-4.140RFRFwnS=/ngRF Ⅱ0 RF

WN80(B)-40MFschFu00c26fRF300-2.52=3

BL150a-16