DYH41X型 DYH41X型快闭止回阀
面议DYH41X型 DYH41X型快闭止回阀
面议DY30AXDY30AX缓开缓闭低水损止回阀
面议DH76X-10 DH76X-10对夹蝶式止回阀
面议HC44X(SFCV)HC44X(SFCV)橡胶瓣止回阀
面议HQ41XHQ41X滚球式球形止回阀
面议HQ45XHQ45X微阻球形止回阀
面议DY30BXDY30BX缓开快闭止回阀
面议HC41X(B型)HC41X(B型)消声止回阀
面议H42T(DRVZ)型 H42T(DRVZ)型*式止回阀
面议HH49X型HH49X型消声缓闭止回阀
面议HH44X型微HH44X型微阻缓闭止回阀
面议HH47XHH47X蝶式缓冲止回阀
面议