GB/T 12459  弯头 DN 100-490ES

DN 100-4 90ES

WN65B-40 RF Spampampaml=159

SO40-16rf1302.53 D015

WN80-25MFMRF0-

so5(a)-150RF235 A

PL 40(B)-16 RF-36 RC8 H000M/32059FfJRF0N Rl-150 SA-1.6/16100-

WN 20(B)-25 RF S=6

WN80(A)-100 RF S=7H=1140-

bi 6140

SO 14"-150 RFr18.5 b=3 f1=2.5 WN4