H44/W/Y 旋启式止回阀

H44美标旋启式止回阀

H42立式止回阀

H42H/Y锻钢立式升降止回阀

内螺纹旋启式止回阀

H76对夹双瓣旋启式止回阀

H46双瓣止回阀

H77型对夹式止回阀

H74薄型对夹旋启止回阀

H72型对夹立式止回阀

H44X(SFCV)型橡胶瓣止回阀

H11T 内螺纹铸铁止回阀