GB/T 12459  同心异径管 DN 150×80-7.11RC

DN 150×80-7.11 RC

WN400-600 RF Sch40RF Ⅱ250A@40@S5 RJrvlet/F sF08F FF.105

wn100-150 rf sch30s

so350a-16rf�X@w5@RFSc1�10Sh8F SCH40a0 RF

SO 14"-300 RFF300

WN50(B)-1500RF0 6

A WN 1050-150 RF Sch40S

WN50-600 FM SCH80)-

IF 25-40 RF

BL80-6RF260