XH41法兰式鸭嘴阀/排污橡胶止回阀

XH81套接式鸭嘴阀/排污橡胶止回阀

HD741X重锤式液控缓闭止回蝶阀

H7B41X液控止回阀

H44H/H44Y高温电站止回阀

H64H/H64Y高压电站止回阀

H61H/H61Y高温高压电站止回阀

RH41-WF法兰式弯嘴鸭嘴阀

RH41-F法兰式鸭嘴阀

H12X黄铜立式止回阀

H14W/H14X黄铜止回阀

H61Y高温铬钼钢止回阀