产品分类
Bellows Gate Valves
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Flange connection bellows gate valve Class
Flange connection bellows gate valve Class -
Butt welding connection bellows gate valve
Butt welding connection bellows gate valve -
承插焊连接波纹管闸阀 PN2.5~4.0MPa Socket welding connection bellows gate valve
承插焊连接波纹管闸阀 PN2.5~4.0MPa Socket welding connection bellows gate valve