The effects and economic benefits of using PE tube filter as the secondaryunit for brine filtering was introduced.
介绍了加装PE管过滤器作为二次过滤装置后的效果及经济效益。
2
The company has gained the security certificate of national dangerous chemicals business unit standardization for the secondaryunit, and also safety production license;
公司获得了国家危险化学品从业单位安全标准化二级企业证书；同时正在办理产品安全生产许可证；
3
Yet, energy recovery can be achieved easily by utilizing the four-quadrant characteristic of the secondaryunit together with high efficiency and good energy saving feature.