HC42XHC42X型止回阀

HC41X型消声止回阀

H76W不锈钢对夹蝶形止回阀

HQ41X-16Q耐腐蚀碳钢球形止回阀

H44W-150LB美标止回阀

H42W/H立式止回阀

HQ41X-16Q无磨损球形止回阀

HQ45X-16Q微阻球形止回阀

H76W对夹式蝶形止回阀

HQ41X球形止回阀HQ41X球形止回阀

H74单瓣旋启式止回阀H74

Q641F-16C不锈钢法兰球阀