Features: 1) Material: stainless steel 304, 316L 2) Aperture: 0.1mm, 0.2mm, 0.5mm 3) Outer diameter : 32mm, 57mm, 600mm Features:1) Material: stainless steel 304,321, 316L2) Aperture: 0.1mm, 0.2mm, 0.5mm 3) Outer diameter : 32mm, 57mm, 600mm4) Length: according to customer's requirements.5) Used for anti-sand in the well or other water filtration places Our products are widely used for wine- ...