NB/T 47022  法兰 T 2200-4.0/20δ1ch48S416�atic=drSch6020or

WN40-600 RF sch40S.п═Б─≤п╡Б─²р√п╡Б─⌠б�

2 T 2200-4.020δ1ch48S416�atic=drSch6020or

WN40-150 RF SRF02RF4.27mm RF S=66 RFlRF6 N=34764/a1s105

WN20-150 RF Sch40 S=30/36mpamp2)=Sch80h40S S=FS506 R62.1.27

1 M 500-0.65-BO1120