HH44X-10P,HH44X-16P,HH44X-25P,HH44X-2.5P,
HQ44X-1.0,HQ44X-1.6,HQ44X-10,HQ44X-16,微阻球形止回阀
HQ41X-10,HQ41X-10P,HQ41X-10C,HQ41X-16,滑道球形式止回阀
HQ41X-16C,HQ41X-1.0,HQ41X-1.0P,HQ41X-1.0C,
HQ41X-1.6,HQ41X-1.6P,HQ41X-1.6C,HQ41X-16P,
HDH47X-1.0,HDH47X-1.6,HDH47X-2.5,HDH47X-10,蝶式缓冲止回阀
HDH47X-25,HDH47X-1.0C,HDH47X-1.6C,HDH47X-2.5C,
HDH47X-10C,HDH47X-16C,HDH47X-25C,HDH47X-16,
HC44X-10,HC44X-10C,HC44X-10P,HC44X-16,橡胶瓣止回阀
HC44X-16P, HC44X-1.0,HC44X-1.0C,HC44X-1.0P,
HC44X-1