A rotermeter linkage device with a synchronous belt comprises an oxygen flow meter (10) and a laughing gas flow meter (9); flow control knobs (2) of the meters are provided with a gear respectively;

一种同步带转子流量计联动装置，包括氧气流量计 （10）和笑气流量计（9），流量计的流量控制钮（2）上 各装有齿轮；

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PV Ribbon, TUI oxygen-free copper belt high purity 99.99%, smooth, brilliant, cleaning, plated by dipping with tin and lead with different chemicals compositions.

涂锡铜带是由纯度达99.99%的TUI无氧铜材制成，产品表面光滑、平整，色泽均匀。在铜线表面涂敷了锡和铅以及其他化合物。

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