304 or 316L stainless steel material for the shell, internal filter for titanium filter tubes, high temperature, high pressure, acid, alkali corrosion, the filter can be regenerated repeatedly use features. Powder metallurgy method is the use of titanium metal powder processing methods made by high-temperature sintering process hollow filter tube, it is widely used in food and beverage, pharmaceutical, chemical and other industries liquid-solid separation, in the pharmaceutical industry, especially for the infusion injection production line the charcoal filter off.