NW/KF 25mm Centring Ring with Viton 'O-ring. Centering Rings are used to connect two flanges of different internal sizes. This creates a vacuum seal with the use of a clamp. (25mm) ">
定心环与氟橡胶“O”型环(用于真空应用程序)- O型环万博电脑网页版登录 - 万博手机版max客户端,万博手机登录网,万博电脑网页版登录
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