蝶阀 Butterfly Valve

• 对夹蝶板阀 Wafer plate valves
• 衬里碟阀 Lining Butterfly Valves
• 蜗轮传动蝶阀 Butterfly Valves with Gear Actuator
• Wafer Type Butterfly Valves with Rubber Itning对夹式衬胶蝶阀