This invention relates to structural changing of the waste water drain trap in housing construction and the double valve water tank of the waste water filter and sanitary ware urinal.
本发明涉及改变住宅建设排水管结构及废水过滤器和卫生洁具便池双阀水箱，改变各楼层废水排水管结构利用二次水自流过滤流入便池水箱冲洗便池及冲洗拖布。
This invention relates to a kind of machining technique of filter material.
本发明涉及一种过滤片材的加工技术。
This invention relates to an air cleaner, which includes the filter that has the antibiotic and sterilization function, the front panel with the front exterior wall;
本发明是关于一种空气清洁器，具有抗菌及杀菌功能的过滤器，包括 形成设有前面外观的前面面板；
应用推荐