另类一区_又粗又大又爽又色又过瘾视频_91大神在线观看精品一区_国产一区二区三区不卡免费观看

Changsha Vaughn Environmental Protection Technology Co., Ltd

中文
Tel:0731-88051799
中文
Home > Case> Medical / medical water treatment

Nanchang environmental protection third-party testing company's overall ultra-pure water system + stainless steel pipe n

Source of articles: Changsha Vaughn Environmental Protection Technology Co., Ltd Popularity:1048 Publication time:2020-05-01 11:42:18 small middle big


The dual-stage reverse osmosis + EDI + SMB process is adopted. The water outlet resistivity is 18.2. The overall pipe network is welded by an automatic welding machine with TG pipe.