honor
- corporate honorchina · shandong yantai wool vacuum technology co., ltd. was registered in 2002. it is a manufacturer specializing in the production of water ring vacuum pumps, roots vacuum pumps, dry screw vacuum pumps and vacuum systems. it has a strong all-pump produc
【专利】可同时启动的串联罗茨真空机组
【专利】一种具有冷却功能的全机械密封罗茨真空泵
【专利】一种带排气冷却结构的罗茨真空泵
【专利】一种便于连接且密封性能良好的液力变矩罗茨泵
【专利】真空止回阀
【专利】一种带除雾功能的汽水分离器
安全生产标准化三级企业（机械）
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