妥思阀门

H44T法兰旋启式止回阀

H42X静音止回阀

HQ41X球形止回阀

HH44X微阻缓闭止回阀

HH49X蝶式微阻缓闭止回阀

HC41X消声止回阀

H84X橡胶瓣止回阀

H81X沟槽消声止回阀