GB/T 12459  偏心异径管 DN 750×10-Sch40SRE0RFh��5ch10S

DN 750×10-Sch40S RE0RFh��5ch10S

WN15-2500RJS=820/6)-16

NB/T47021 C-RF1500-0.25

bl25 -40rfF S=

pl450-25 m80/urf0

LWN125-300FM HRF00 Rff0(b

pl80(a)-10ff d=155

wn 200(b)-16 rfL4580S

wn 25-300 fms=4

WN50-600rf D=94061165 K H=300N100-16R/ch80S-pampam