The device has large filtering area, simple structure, and significant energy saving effect.
本装置过滤面积大，结构简单，节能显著。
The invention relates to an energy-saving device, in particular to an oil-saving device.
本发明涉及节能装置，尤其涉及一种节油装置。
Energy Saving water device system, long-distance suck technology and multi-level shock absorption technology.
环保节能加水系统，高吸程功能和多级减震技术。
Energy Saving water device system, long-distance suck technology and multi-level shock absorption technology.
环保节能加水系统，高吸程功能和多级减震技术。
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