GB/T 12459  弯头 DN 300-Ⅱ-690EL0 Ss RF50-16R6RFr

DN 300-Ⅱ-6 90EL0 Ss RF50-16R6RFr

A BL800-900RJF)-16 Sch805.916 rf hg/40-150 RF Sc

bl125-16 t60t₧ΓÇ£╨ô606/

BL 65-25 RF3100G RFRC207e0s=4=3=2

WN80(A)-63 FMFch800Ë

WN40(A)-63 M S=4.0 п

SW15-16 RF/

PL65(B)-6 RF b=5b1=1426 d=1535 n=36 l

PL8