GB/T 12459  偏心异径管 DN 1400×15-Ⅱ-4.5RE

DN 1400×15-Ⅱ-4.5 RE

3 B3rF RFFf50/@RFF2c6 rfRF D080(b)

bi 1000-50083u00b06 rf2

SO 40-2500 RJ/h s=

SO 15(B)-16 RFFMRF0062h

Wn15(B)-63mch80/u

PL300(A)-10RF/mpamp;lF16rf

PL 40(B)-6 RF-c3/5

WN25-600 fM/data/sF6RF5240@900 RJ Sc0��4FSc1202

SO 200-30