Plumbers install, repair and maintain pipes, fixtures and other plumbing equipment used for water distribution and waste water disposal in residential, commercial and industrial buildings.
管道工安装，维修和保养管道，装置和用于住宅，商业和工业建筑的配水和废水处理等水暖器材。
Most of the wet feed preparation systems are composed of water washing equipment, dewatering equipment and sewage disposal system.
湿法备料系统大多由水洗设备、 脱水设备和污水处理系统组成。
It's utilized as controlling and checking equipment in water supply, sewage disposal, construction, oil, chemicals, food, medicine, textiles, electricity etc.
可广泛用于自来水、污水、建筑、石油、化工、食品、医药、轻纺、电力、船舶、治金、能源系统等流体管线上作为调节和截流装置使用。
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