同心异径管 DN 25×15-3RC5S=00c3/u0083/u00c6/u0092/u00c3

DN 25×15-3 RC5S=00c3/u0083/u00c6/u0092/u00c3

wn400-300 rf s=5Gsh60

HG/T20615-2009 LWN25-600 RF B=27 H=125

47023 RF450-4.0/70-165

BL 500-300 RF=1935RFS=64/

LWN450-600RF B=444 H=383/

BL 25- 25RF00h60cp250-25° wn 80-

PL65(B)-16 RFmpampamRF

PL600