分类
SF6B – 1/2″ BSP x 20mm
SF7B – 1/2″ BSP x 25mm
SF6C – 3/4″ BSP x 20mm
SF7C – 3/4″ BSP x 25mm
SF9C – 3/4″ BSP x 32mm
SF9D – 1″ BSP x 32mm
EE66 – 20mm x 20mm EE77 – 25mm x 25mm EE99 – 32mm x 32mm