偏心异径管 DN 300×250-3RERFhg/t20

DN 250×300-3 RERFhg/t20

WN700-300 RFRFRFR sc/

BL 150-2.5 RF25 HG/T

bl600(B)-40RF D=895 K=840 L=30 n=32 C=64 d=7

HG/T+20592-2009+PL80(B)-10RF

PL125-16RF b=2.00r

wn100-300 rf shc251200-1.n3FF210 RF

wn150(b)-16rf|06cr19ni10.5 58/forum.sch160

wn25-300 r