A.0.13~0.40 B.2.7~4.0 C.6.5~7.4 D.7.5~9.0
A.0.1%~0.3% B.0.3%~0.5% C.0.5%~0.8% D.0.5%~1%
A.截止閥 B.止回閥 C.背壓閥 D.電磁閥