A.0.8~1.1mm B.0.9~1.2mm C.1.0~1.3mm D.1.1~1.4mm
A.0.7~0.9mm B.0.8~1.0mm C.0.9~1.1mm D.1.0~1.2mm
A.進水閥 B.放氣閥 C.放水閥 D.放油閥