jacket valve [机] 套层阀 ; 夹套阀门

jacket drain valve 气缸套泄水阀 ; 缸套泄水阀

water jacket safety valve 水套安全阀

valve-seat jacket 气门座水套

jacket safety relief valve 保温套安全阀

ball valve with insulation jacket 具有保温套的球阀

valve with jacket 夹套阀

valve seat jacket 气门座水套

jacket globe valve 夹套保温截止阀