同心异径管 DN 50×25-Ⅱ-14.2RCs1644 LRF Sch80S= n=44 LBhgc

DN 50×25-Ⅱ-14.2 RCs1644 LRF Sch80S= n=44 LBhgc

SO 65(a)-16 RF¶.7)15 dn=1700 dMc1F16RF S=81004.

WN150-300 FM/M57

SO125(B)-16 RF b=50fp;a

PL 25(A)-16 RF-9rfRF0

PL 65B)-40 RF0S-

PL600-10RF D=895 K= B1=724

wn65(B)-25fm/

WN150-300 T Sch=Fh4/ sch1 B=49