TWOWAY蝶式预充阀，充液阀型号：
TWOWAY SVF-32
TWOWAY SVF-50
TWOWAY SVF-63
TWOWAY SVF-80
TWOWAY SVF-100
TWOWAY SVF-125
TWOWAY SVF-160
TWOWAY SVF-200
TWOWAY SCF-32
TWOWAY SCF-50
TWOWAY SCF-63
TWOWAY SCF-80
TWOWAY SCF-100
TWOWAY SCF-125
