X-1.6,HC41X-10,HC41X-16,HC41X-1.0C,HC41X-10C,消声止回阀
HC41X-1.0P,HC41X-1.6,HC41X-10P,HC41X-16P,HC41X-1.6C,HC41X-16C,
HH44X-1.0,HH44X-1.6,HH44X-2.5,HH44X-10,HH44X-16,微阻缓闭止回阀
HH44X-25,HH44X-1.0C,HH44X-1.6C,HH44X-2.5C,HH44X-10C,
HH44X-16C,HH44X-25C,HH44X-1.0P,HH44X-1.6P,
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-