HC44X橡胶瓣止回阀

H41型升降式止回阀

H42型H42型立式止回阀

H44HH44H旋启式止回阀

HH44XHH44X微阻缓闭止回阀

HQ45X型微阻球形止回阀

H42X（DRVZ)*止回阀

HH46X/HH48X/HH49X微阻缓闭蝶型止回阀

H42X型H42X型底阀

YG43H/Y型高灵敏度蒸汽减压阀

YG13H/Y型内螺纹连接高灵敏度蒸汽减压阀

YGA43H/Y型高灵敏度大流量蒸汽减压阀