【I want to buy some automatism valve,for exampl】

发布时间：2021-03-16 18:57:33

I want to buy some automatism valve,for example electric valve,motorized valve,Pneumatic Valve,but i can not know which valve i should to bay ,who can tell me the point about these electric valve,moto

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其实他们的区别太 复杂了
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