NB/T 47021  法兰 M 1500-0.25/5 R.6on0frffC RF

1 M1500-0.255 R.6on0frffC RF

吊耳HP-1-2-10

DN15-PN320 WN RF Ⅱ Sch40S

WN 32(A)-100 RF S=3.5

wn20-16RF2 bb=13

DN15-PN100 WN RJ Ⅱ Sch40S

WN 20(B)-100 FM S=3.5

SO 1 1/2"-150 RF

LF/SE 125-150 RF S=4

PL 65(B)-16 RF/u00c2/u00a56 R/0SRF S652. RAS1