... 3.1、金属密封球阀 metal-seated ball valve 3.2、单向密封 unidirectional sealing 3.3、双向密封 bidirectional sealing ...
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The products are included metal seated Vulcan Power Valve, General Severe Service Series metal and ceramic seated Ball Valves and Signature Series metal and ceramic seated Ball Valves.
产品包括金属座铁匠电站阀门，金属座陶瓷座全能系列球阀，金属座陶瓷座超凡系列球阀。
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