JLH多功能三合一止回阀、元冬多功能止回阀

JL45限流止回阀、元冬JL45止回阀

JIS日标旋启式止回阀、不锈钢日标止回阀

HQ44X HQ45X微阻球形止回阀

HQ41X无磨损球形止回阀、元冬铸铁球形止回阀

HH46X、HH48X、HH49X微阻缓闭蝶式止回阀

HH44X微阻缓闭止回阀、元冬HH44X止回阀

HH44X微阻缓闭消声止回阀

HC41X节能消声止回阀、铜芯消声止回阀

HC41X节能梭式止回阀、元冬节能止回阀

H76X H76H H76W对夹式蝶型止回阀

H76H对夹双瓣式止回阀、铸钢H76H止回阀