D in the air switch in the "OFF" state, and then enter wiring, protect NUVW signs, labels * If the wiring, please consult the factory.
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Please read the instruction carefully before use or consult factory.
使用前请先仔细阅读使用说明书或者咨询厂家。
Valves should be installed in the (stem) vertical position with the pipe flow horizontal only. For installations other than this, please consult factory when ordering.
阀门应该只能安装在水平流向的管线上，其阀杆应该垂直向上。如果需要其它方式的安装，请在订购阀门时咨询工厂。
Monitor factory mainly produces various grades of stent, a variety of monitoring probes PTZ and its surrounding parts, please consult the new and old customers to negotiate!
工厂主要生产监控器各种档次支架，多种监控探头云台及其周边配件，欢迎新老客户咨询洽谈！
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