NB/T 47065.1  支座 A 5731

2 A5731

BⅡ3951

3 B7678

LWN 25-150 RF B=4.5

bii 3696

BI 70822

DN25-PN40 WN T Ⅱ S=3

3 B2084

SP-10379

BL 1"-150 RFrfR1500-s00 FM5=10�5RFSch3000FFuot;-1500 RF Sch80S531617RJ5 RJ5 90EL4cB)-16 RF S=1200-16 RF25(B)-10 RF S=3 ARF Sd=21B)-16 RF3353