三片式球阀工作原理及型号和安装教程
公司动态 / 2021-08-18 / 1818 Visits

三片式球阀工作原理是靠旋转阀杆来使阀门畅通或闭塞;全通径锻钢球阀球阀开关轻便,体积小,密封可靠,结构、密封面与球面常在闭合状态,不易被介质冲蚀等特点

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