wika差压开关全不锈钢外壳
cella压差开关DWL40UN-0/1
WIKA压差开关DWL100UN-0/4
wika差压开关DWL40UN-0/25
WIKA压差开关DWL100UN-0/2
cella压差开关DWL160UN-0/
DW160UN-0/2.5BAR威卡差压
威卡差压开关DCHH2A - 0-2
CELLA差压控制器防爆型DCA
CELLA防爆差压控制器DCAH2
CELLA防爆差压开关DCAH2A