缓闭式止回阀460X
HC300X-10C/16C/25C缓闭式止回阀
缓开快闭止回阀DY30BX-10C/16C/25C
缓开缓闭多功能止回阀DY30AX-10C/16C/25C
DHH44X-10C/16C/25C微阻缓闭止回阀
无磨损球形止回阀HQ45X-10C/16C/25C
无磨损球形止回阀HQ44X/H-10
滑道滚球式止回阀HQ41X-10C/16C/25C
HH49H-10C/16C/25C微阻缓闭式止回阀
HDH48X-10C/16C/25C微阻缓闭蝶式止回阀
微阻缓闭蝶式止回阀HH46H-10C/16C/25C
HH44X-10C/16C/25C微阻缓闭止回阀
微阻缓闭止回阀HH44H-10C/16C/25C
HDH47H-10C/16C/25C蝶式缓冲止回阀
H47X/H蝶式缓冲止回阀