弯头 DN 40-Sch2090EL

DN 40-Sch20 90EL

so32-150 RF504

sh/t 3406-2013 wn500-300 rf

PL65(A)-16 FF b=1B)-25RFF25RF14S0H0F Sch80FSch40

WN25(a)-150rfRF sch80 C=41 H=91-1F.70 K=11Î80=000(b)-10 rfRF

EHA 2200l2×12=16s=5.5fm.5.

pl400(b)-10 rf c=36

WN 300(B)-16 RF S=18

BL 80-16