GB/T 12459  异径三通 DN 1400×1400×80-Sch20TR

DN 80×80×1400-Sch20 TR

WN 900(B)-10 RF Sch80S

SO125-25 FM

BL40-2500 FM

BL80-2500 T

SO40-900 M

3 FM 1000-4.0 δ0=24

BL50-300 MF B=1

BL500-600RF N=122 S

WN300-300 RF B=30¢Ã¢B IIFF Sch40-ovF;eqid=80ebfc4e000393e3000000055a5d8dde40s Sch40 undefiFfsc