GB/T 12459  同心异径管 DN 450×10-Sch10SRCF0a-0.6

DN 450×10-Sch10S RCF0a-0.6

WN32B-63 RF S=40S R

3 RF 400-2.5pamp5rf�F0Sch40 MH8h

WN25(B)-16 RF S=63

BL65-10GJ-S@bl100-150 rf-11019N1FF

BL10B-16RF0.0HFoF/0rj

WN15A-63RF S �S157021@p SCJRF24-10RFoph4

SO 40-1500 RFF0 s

PL900(B)-40 RF S=400

so100(a)-