Sintered Porous Powder Metals are usually produced either by gravity sintering, which relies primarily on high temperature or by pre-compression of the powder at room temperature into a compacted green state followed by sintering. Both methods are used in porous metal production. Gravity sintering is ideal for flat sheet, and yields materials suitable for use as filter media with maximum permeability and dirt holding capacity. The conventional method of pressing and sintering is useful to produce shapes such as porous bushings or seamless cylinders.

Sintered Wire Mesh Laminate has heat resistant up to 480ºC. They are sintered together through vacuum sinter and rolling and made into a kind of porous plate. It has the superior advantage of high durability, high strength and easy to wash than the other filter materials. It also has excellent resistance to pressure and high mechanical strength due to the fourth and fifth layers reinforced. It has corrosion resistance as a result of adopting 316L. It is easy to wash, especially back washing owing to the surface filtration structure.